Lets discuss questions of NBDE 1

[d dimps]

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1). .Which angle does a P Wave makes on ECG?
a). .45 degree
b). .180 degree
c). .0 degree
d). .-45 degree
e). .-180 degree.

2). .What is endogenous cholesterol? Most endogenous cholesterol is converted to?
a). .Glucose
b). .Cholic acid
c). .Steroid
d). .Oxaloacetete
e). .Ketone bodies

3). .Which of the following statement is correct regarding Glioblastoma multiforme?
a). .the tumor is most common before puberty
b). .it is classified as a type of meningioma
c). .it is most common type of Astrocytoma.
d). .Its prognosis is generally more favourablethan Grade 1 astrocytoma.
e). .It is derived from the epithelial lining of ventricles

4). .Which of the following pathological changes is irreversible?
a). .fatty changes in liver cells
b). .karyolysis in myocardial cells
c). .glycogen deposition in hepatocyte nuclei
d). .hydropic vacuolization of renal tubular epithelial cells.

5). .An example of Synergism is the effect of?
a). .insulin and glucagon on blood glucose
b). .estrogen and progesterone on uterine motility
c). .growth hormone and thyroxine on skeletal growth.
d). .Antidiuretic hormone and aldosterone on potassium excretion.

 

[teethie]

posted question on this thread. let us c if we get any response.
http://forums.studentdoctor.net/showthread.php?p=10065463#post10065463

http://forums.studentdoctor.net/showthread.php?p=10065770#post10065770

 

[deck]

👍👍👍👍👍👍👍👍Thank you ^^

Hey teethie

Answer for first question is definitely 'b'.
Here's the proof
http://books.google.com/books?id=1s...NHh47BsB2AUpWA4fVak&hl=en&ei=ZANvTK2qGIO88gbf

At first I guessed it should be b and then did some googling to confirm the same.
My logic was that soft bolus had to do with texture of food and telling the brain that it is ready for next stage of digestion, so periodontal and TMJ proprioreceptors should have nothing to with it as they would signal abnormal forces....
as for oropharynx, that is the second part of swallowing once brain knows food is mixed well enough to be swallowed. So would have to be transmitted by mechanoreceptors of mouth.

Anyways check the link, its explained really well.🙂

 

[deck]

deck are you sure ques asks for mesial concavity for molars coz in asda released exm i hav cum across this ques n it mentions distal concavitity for molars ,even i'm not aware it has mesial that needs attention.som eone plz confirm this ?

I think the test is typo....I agree with u for the distal concavity on max 1 molar

 

[drdds3]

Can anyone plz answer these Qs:

1. what is the third sequence of collagen?
a. proline
b. Glycine

2. Loss of proximal contact would be expected in:
a. Drifting of teeth
b. food impaction
c. bone loss
d. damage to interdental papilla
e. unfavorable occlusion

Which of the following is usually subclinical?
a. bacteremia
b. Herpes simplex

when is prevotella detectable in the oral cavity?
a. adolescent
b. puberty

what connect interdental filament?
a. zona adherens
b. desmosomes

c fibres are
a. myelinated
b. unmyelinated

which enzyme prevents glucose from escaping muscle tissue?

Pt had lesion on one side spinal. what is missing on opposite side?
a. pain/temperature on opposite side
b. motor ipsilateral
c. pain/temp contralateral

what is a bad characteristic for DNA cloning?

 

[drdds3]

what connects intermediate filament?
a. zona adherens
b. desmosomes

 

[elmos]

Can anyone plz answer these Qs:

1. what is the third sequence of collagen?
a. proline
b. Glycine ans

2. Loss of proximal contact would be expected in:
a. Drifting of teeth ans
b. food impaction
c. bone loss
d. damage to interdental papilla
e. unfavorable occlusion

Which of the following is usually subclinical?
a. bacteremia
b. Herpes simplex ans

when is prevotella detectable in the oral cavity?
a. adolescent ans
b. puberty

what connect interdental filament?
a. zona adherens
b. desmosomes ans

c fibres are
a. myelinated
b. unmyelinated ans

which enzyme prevents glucose from escaping muscle tissue?


Pt had lesion on one side spinal. what is missing on opposite side?
a. pain/temperature on opposite side i think ans
b. motor ipsilateral
c. pain/temp contralateral

what is a bad characteristic for DNA cloning?

pls correct me if i'm wrong

 

[elmos]

does anyone see in the decks171, diabetes mellitus cause concentrated urine? pls can anyone explain?

 

[aditi bhandari]

i want to join rxdentistry nbde part 1 test series onlone.heard a lot about it.plz help

 

[teethie]

i could not find anything,which edition?

does anyone see in the decks171, diabetes mellitus cause concentrated urine? pls can anyone explain?

 

[bratdoc]

1. what is the third sequence of collagen?
a. proline--->> Answer
b. Glycine


The sequence often follows the pattern Gly-Pro-X or Gly-X-Hyp, where X may be any of various other amino acid residues

Pt had lesion on one side spinal. what is missing on opposite side?
a. pain/temperature on opposite side
b. motor ipsilateral
c. pain/temp contralateral

Both a and c are the same options and are also the correct answer!


Plz lemme know if im wrong

 

[elmos]

hi teethie it's in 2009-2010, biophysio decks number 171 there's a small table saying concentrated urine diabetes mellitus?

 

[elmos]

1. what is the third sequence of collagen?
a. proline--->> Answer
b. Glycine


The sequence often follows the pattern Gly-Pro-X or Gly-X-Hyp, where X may be any of various other amino acid residues

Pt had lesion on one side spinal. what is missing on opposite side?
a. pain/temperature on opposite side
b. motor ipsilateral
c. pain/temp contralateral

Both a and c are the same options and are also the correct answer!


Plz lemme know if im wrong

can u tell me from where did u get proline, cause on wiki they said third amino acid glycine?

 

[bratdoc]

Yes i just saw wiki says Gly on 3rd position and also X on thrid poisiton

A distinctive feature of collagen is the regular arrangement of amino acids in each of the three chains of these collagen subunits. The sequence often follows the pattern Gly-Pro-X or Gly-X-Hyp, where X may be any of various other amino acid residues. Proline or hydroxyproline constitute about 1/6 of the total sequence. With glycine accounting for the 1/3 of the sequence, this means that approximately half of the collagen sequence is not glycine, proline or hydroxyproline, a fact often missed due to the distraction of the unusual GX1X2 character of collagen alpha-peptides. This kind of regular repetition and high glycine content is found in only a few other fibrous proteins, such as silk fibroin. About 75-80% of silk is (approximately) -Gly-Ala-Gly-Ala- with 10% serine, and elastin is rich in glycine, proline, and alanine (Ala), whose side group is a small, inert methyl group. Such high glycine and regular repetitions are never found in globular proteins save for very short sections of their sequence. Chemically-reactive side groups are not needed in structural proteins as they are in enzymes and transport proteins, however collagen is not quite just a structural protein. Due to its key role in the determination of cell phenotype, cell adhesion, tissue regulation and infrastructure, many sections of its non-proline rich regions have cell or matrix association / regulation roles. The relatively high content of proline and hydroxyproline rings, with their geometrically constrained carboxyl and (secondary) amino groups, along with the rich abundance of glycine, accounts for the tendency of the individual polypeptide strands to form left-handed helices spontaneously, without any intrachain hydrogen bonding.
Because glycine is the smallest amino acid with no side chain, it plays a unique role in fibrous structural proteins. In collagen, Gly is required at every third position because the assembly of the triple helix puts this residue at the interior (axis) of the helix, where there is no space for a larger side group than glycine's single hydrogen atom. For the same reason, the rings of the Pro and Hyp must point outward. These two amino acids help stabilize the triple helix—Hyp even more so than Pro; a lower concentration of them is required in animals such as fish, whose body temperatures are lower than most warm-blooded animals.


CONFUSED!!!

 

[elmos]

can anybody help us to solve collagen mystery😀
teethie wdent pb2007 pls help.

 

[teethie]

elmos, agree with you it is glycine on third position. reference: kaplan and lippincott

i found the deck card but have no ansswer why it is mentioned as concentrated other than this that it could be due to high glucose levels.
if anyone can explain, i appreciate.

regarding stapedectomy question, answer poted on medical forum is basilar memebrane.

 

[asheer]

Qs:

1. what is the third sequence of collagen?
a. proline
b. Glycine : ANS even i feel this is the right ans i think by sayin 3rd they mean the 1/3rd of the collagen !!!! ya collagen sequence is gly-x-y this is wat i read in lippincot they say it gets hydroxylated at the y position!!!!!!!🙄

2. Loss of proximal contact would be expected in:
a. Drifting of teeth :ANS
b. food impaction
c. bone loss
d. damage to interdental papilla
e. unfavorable occlusion

Which of the following is usually subclinical?
a. bacteremia:ANS COS THERE IS BACTERIMIA TRANSIENTLY AFTER THE ORAL PROPHYLAXIS OR EXATRACTION WHICH IS SUBCLINICAL ,AND THE HERPES MAY BE CLINICAL SOME TIMES COS HAS THE CLINICAL PRESENTATION OF THE ORAL ULCERS
b. Herpes simplex

when is prevotella detectable in the oral cavity?
a. adolescent ans😕
b. puberty

what connect interdental filament?
a. zona adherens
b. desmosomes ans CAN U PLSSS EXPLAIN THIS😕

c fibres are
a. myelinated
b. unmyelinated ans👍

which enzyme prevents glucose from escaping muscle tissue? THE ANS FOR THIS I THINK IS THE HEXOKINASE THE STARTIN WHICH CONVERTS GLUCOSE TO G6P WHICH CANNOT CROSS THE MEMBRANE AND THAT IS ALSO THE FIRST ENZYME IN THE SYNTHESIS OF GLYCOGEN


Pt had lesion on one side spinal. what is missing on opposite side?
a. pain/temperature on opposite side i think ans
b. motor ipsilateral
c. pain/temp contralateral BOTH A AND C 👍

what is a bad characteristic for DNA cloning😕😕😕😕😕

 

[pb2007]

can anybody help us to solve collagen mystery😀
teethie wdent pb2007 pls help.

elmos ,its absolutly correct what teethie n bratdoc said ,glycine is in 3rd position .if you have lippincotts read collagen part from there .as teethie said kaplan too mentions it .i dont have the book rite now if you still want more reassurance want i'l write what lippincott says in evening.

 

[asheer]

regarding stapedectomy i feel its imp in mov of the endolymph !!!cos in sequence of the sound transmission as a vibration its like tympanic membrane to the ossicles to the oval window to the endolymph ---to the basilar membrane ---tectoral membrane on which the hair cell are present 🙂 i think it might be the ans correct me if am wrong🙂

 

[teethie]

....

Qs:

1. what is the third sequence of collagen?
a. proline
b. Glycine : ANS even i feel this is the right ans i think by sayin 3rd they mean the 1/3rd of the collagen !!!! ya collagen sequence is gly-x-y this is wat i read in lippincot they say it gets hydroxylated at the y position!!!!!!!🙄

2. Loss of proximal contact would be expected in:
a. Drifting of teeth :ANS
b. food impaction
c. bone loss
d. damage to interdental papilla
e. unfavorable occlusion

Which of the following is usually subclinical?
a. bacteremia:ANS COS THERE IS BACTERIMIA TRANSIENTLY AFTER THE ORAL PROPHYLAXIS OR EXATRACTION WHICH IS SUBCLINICAL ,AND THE HERPES MAY BE CLINICAL SOME TIMES COS HAS THE CLINICAL PRESENTATION OF THE ORAL ULCERS
b. Herpes simplex ---------------------answer

asheer, bacteremia is only presence of bacteria may or may not be of clinical significance.



when is prevotella detectable in the oral cavity?
a. adolescent ans😕 i remember something is given in micro biology decks
b. puberty

what connect intermediate filament?
a. zona adherens
b. desmosomes ans CAN U PLSSS EXPLAIN THIS😕 button like structures that join intermediate filaments----reference kaplan.

c fibres are
a. myelinated
b. unmyelinated ans👍

which enzyme prevents glucose from escaping muscle tissue? THE ANS FOR THIS I THINK IS THE HEXOKINASE THE STARTIN WHICH CONVERTS GLUCOSE TO G6P WHICH CANNOT CROSS THE MEMBRANE AND THAT IS ALSO THE FIRST ENZYME IN THE SYNTHESIS OF GLYCOGEN


Pt had lesion on one side spinal. what is missing on opposite side?
a. pain/temperature on opposite side i think ans
b. motor ipsilateral
c. pain/temp contralateral BOTH A AND C 👍

what is a bad characteristic for DNA cloning😕😕😕😕😕[/QUOTE]?????????????????????????????????????donno

 

[teethie]

then answer is B if I GO WITH THE SEQUENCE YOU MENTIONED.

this question is sucking brain now...... i feel like asking it from my family doctor now to get rid of all th confusions..🙂

regarding stapedectomy i feel its imp in mov of the endolymph !!!cos in sequence of the sound transmission as a vibration its like tympanic membrane to the ossicles to the oval window to the endolymph ---to the basilar membrane ---tectoral membrane on which the hair cell are present 🙂 i think it might be the ans correct me if am wrong🙂

 

[bratdoc]

then answer is B if I GO WITH THE SEQUENCE YOU MENTIONED.

this question is sucking brain now...... i feel like asking it from my family doctor now to get rid of all th confusions..🙂

Hmmm i guess if this is the order it makes sense coz tectomembrane comes after endolymph and perilymph movement in the ear!!

 

[bratdoc]

guys quick question
ACTH binds to receptors on the cell membrane or the nuclear membrane?!
I have got it all messed up.. as in which hormones bind to cell memb and which to the nuclear mem(like testosterone)

 

[pb2007]

guys quick question
ACTH binds to receptors on the cell membrane or the nuclear membrane?!
I have got it all messed up.. as in which hormones bind to cell memb and which to the nuclear mem(like testosterone)

acth binds to cell surface receptors ,its a polypeptide hormone.
http://en.wikipedia.org/wiki/Adrenocorticotropic_hormone#Structure
steroid hormones will bind to nuclear membrane.

 

[bratdoc]

acth binds to cell surface receptors ,its a polypeptide hormone.
http://en.wikipedia.org/wiki/Adrenocorticotropic_hormone#Structure
steroid hormones will bind to nuclear membrane.

THANX!!!👍👍

 

[drdds3]

Few more here:

Which cell phase would be involved in replication
a. mitosis
b. G1

Which of the following is not a microbial component of plaque
a. dextran
b. glucosidases
c. left food particles
d. glycoproteins

Lateral pterygoid, suprahyoid, posterior digastric contract in which of the following
a. protrusion
b. retrusion
c. opening
d. closing

If both ventricles are infarcted which artery is damaged
a. right coronary
b. left anterior descending

which doesnot have a cellwall?
a. bacteria
b. fungi
c. eukaryotes

the receptors for the hormone that causes blood glucose level to quickly drop are located on which cellular component in target cells?
a. mitochondrial matrix
b. nuclear matrix
c. nuclear membrane

mode of action of antivirals
a. against rna
b. against protein
c. against nucleiic acid

which of the following explains why the digestive action of salivary amylase continues for sometime after swallowing?
a. gastric Hcl increases the digestive action of amylase
b. gastric mucin lubricates the bolus and assists amylase activity
c. the amylase inside the bolus is protected from the inactivating action of gastric Hcl
d. water absorption by stomach concentrates amylase and make its action more effective

 

[bratdoc]

Few more here:

Which cell phase would be involved in replication
a. mitosis Cell division occurs here
b. G1 cellular growth phase
Replication occurs in the S phase... u sure these were the only options?
Which of the following is not a microbial component of plaque
a. dextran
b. glucosidases
c. left food particles----MAybe???
d. glycoproteins

Lateral pterygoid, suprahyoid, posterior digastric contract in which of the following
a. protrusion---ANSWER
b. retrusion
c. opening
d. closing

If both ventricles are infarcted which artery is damaged
a. right coronary---ANSWER
b. left anterior descending

which doesnot have a cellwall?
a. bacteria
b. fungi
c. eukaryotes ---ANSWER ONLY IF ANIMAL CELL

the receptors for the hormone that causes blood glucose level to quickly drop are located on which cellular component in target cells?
a. mitochondrial matrix---ANSWER??
b. nuclear matrix
c. nuclear membrane

mode of action of antivirals
a. against rna
b. against protein some antivirals like fomivirsen
c. against nucleiic acid RTIs Purine/Pyrimidine analogs
i think the question is not specific of which kind of antiviral

which of the following explains why the digestive action of salivary amylase continues for sometime after swallowing?
a. gastric Hcl increases the digestive action of amylase
b. gastric mucin lubricates the bolus and assists amylase activity
c. the amylase inside the bolus is protected from the inactivating action of gastric Hcl---ANSWER
d. water absorption by stomach concentrates amylase and make its action more effective

lemme know

 

[teethie]

my comments in blue. correct if wrong.

lemme know

Which cell phase would be involved in replication
a. mitosis Cell division occurs here
b. G1 cellular growth phase
Replication occurs in the S phase... u sure these were the only options?
agree should be S phase

Which of the following is not a microbial component of plaque
a. dextran
b. glucosidases
c. left food particles----MAybe???
d. glycoproteins

Lateral pterygoid, suprahyoid, posterior digastric contract in which of the following
a. protrusion---ANSWER
b. retrusion
c. opening--------------answer
d. closing

If both ventricles are infarcted which artery is damaged
a. right coronary---ANSWER---no
b. left anterior descending------answer--see decks card 156.

which doesnot have a cellwall?
a. bacteria
b. fungi
c. eukaryotes ---ANSWER ONLY IF ANIMAL CELL---👍

the receptors for the hormone that causes blood glucose level to quickly drop are located on which cellular component in target cells?
a. mitochondrial matrix---ANSWER??---can you explain this
b. nuclear matrix
c. nuclear membrane

mode of action of antivirals
a. against rna
b. against protein some antivirals like fomivirsen
c. against nucleiic acid RTIs Purine/Pyrimidine analogs------agree👍
i think the question is not specific of which kind of antiviral

which of the following explains why the digestive action of salivary amylase continues for sometime after swallowing?
a. gastric Hcl increases the digestive action of amylase
b. gastric mucin lubricates the bolus and assists amylase activity
c. the amylase inside the bolus is protected from the inactivating action of gastric Hcl---ANSWER---agree👍
d. water absorption by stomach concentrates amylase and make its action more effective

 

[elmos]

teethie i think it's right coronary artery cause in usmle first aid says that right coronary supply inferior portion of left ventricule.
but the left anterior descending doesn't supply right ventricle.what do you think?

 

[bratdoc]

Oh my mistake the answer is Opening for this question
Lateral pterygoid, suprahyoid, posterior digastric contract in which of the following
a. protrusion
b. retrusion
c. opening--------------answer
d. closing

Lateral pterygoid is the only muscle needed for protrusion
Lateral pterygoid+ Suprahyoid+digastric for opening...
Didnt read the question properly!! DAMN I SHOULD BE MORE CAREFUL IN THE EXAM


As for the coronary artery question
The LAD typically supplies 45-55% of the left ventricle (LV).
whereas the right coronary artery in addition to supplying blood to the right ventricle (RV), the RCA supplies 25% to 35% of the left ventricle (LV).

 

[Cindrella]

the receptors for the hormone that causes blood glucose level to quickly drop are located on which cellular component in target cells?
a. mitochondrial matrix
b. nuclear matrix
c. nuclear membrane

are you sure these three are the only options ??
Insulin is the hormone that causes the BGL to drop ... insulin is a water soluble hormone and its receptors should be located on the cell surface.. am i right ?!

somebody pls clarify

 

[Cindrella]

The pterygomandibular space maybe approached intraorally in order to drain a purulent abscess . Which of the followng muscles is most likely to be incised -
1- masseter
2- temporalis
3- buccinator
4- medial pterygoid
5- inferior pharyngeal constrictor

pls explain

 

[teethie]

no elmos, left anterior descending artery also supplies both right and left ventricles and it is the note given in dental decks that this artery is the most often involved in coronary occlusions.

bratdoc, i agree with your percentage but if according to you The LAD typically supplies 45-55% of the left ventricle (LV)
then where is the remanining percentage of blood going to? is not it the right ventricle.

please correct if i am wrong.

teethie i think it's right coronary artery cause in usmle first aid says that right coronary supply inferior portion of left ventricule.
but the left anterior descending doesn't supply right ventricle.what do you think?

 

[drdds3]

What is the final answer--

If both ventricles are infarcted which artery is damaged
a. right coronary
b. left anterior descending

 

[drdds3]

Need help with these Qs:

where are the Phagocytes present in tmj:
a. articular eminence
b. central portion of disc
(posterior area or retrodiscal area are not in options)

Radioopacity near Tmj is due to
a. zygomatic arch
b. tumor
c. cyst
d. maxillary tuberosity

Oxidative degeneration of pyruvic acid is due to
a. oxaloacetic acid
b. citrate

which of the following is deceased except one:
a. brain dna
b. mitichondria mRna
c. dentin radiograph
d. TRH

Polymerization chain reaction procedure:
a. DNA replication
b. DNA transcription

DNA finger printing includes what
a. radiolabeled proteins
b. plasmids
c. replication or polymerization

Hepatocytes and pancreatic acinal cells are derived from
a. mesoderm
b. visceral mesoderm
c. parietal mesoderm

Protrusion of hyoid bone
a. geniohyoid
b. stylohyoid
c. sternohyoid
d.Thyrohyoid
e. sternothyroid

condyle ossification or bone formation is formed by what age

In embryo Tmj chondrogenesis occur during
a. 6 weeks
b. 8 weeks
c. 12 weeks
d. 15 or 16 weeks

In child cartilage in Tmj
a. hyaline
b. fibrocartilage

crypts of leiberkuhn is seen in:
a. muscularis mucosa
b. muscularis externa
c. lamina propria
d. submucosa
e. serosa
(mucosa is not in options)

canthus of eye fractured. which bone is injured
a. frontal process of maxilla
b. maxillary process of frontal
c. sphenoid
d. maxilla
e. zygoma

Maxillary canine lingually abraded by which tooth
a. Distial of mand. canine
b. mesial of mand. 1st premolar

Axilla posterior wall includes all except:
a. humerus
b. serratus anterior
c. pectoralis major
d. subscapularis
e. teres major

vocal cords produce sound by which muscle
a. posterior cricoarytenoid with lateral arytenoid
b. transverse with lateral arytenoidroid
c. cricothyroid

caries involve all except
a. lactic acid
b. acetic acid
c. palmitic acid
d. oleic acid
e. linoleiic acid

In Y type mand 2nd premolar grooves are:
a. mesial, distal, central
b. mesiofacial, distofacial, central
(none of the options has lingual groove)

In Y type mand 2nd premolar groove size from larger to smaller:
same options as above

 

[Cindrella]

Axilla posterior wall includes all except:
a. humerus
b. serratus anterior
c. pectoralis major ... i guess !!
d. subscapularis
e. teres major

pectoralis major should be forming the anterior wall right ?! pls correct me if i am wrong

 

[Cindrella]

Which of the following agents is most often associated with fatalities following influenzal infections ?
1- Influenza virus
2- strep. mitis
3- strep pyogenes
4- staph aureus ...ANSWER
5- H. influenzae

Microorganisms characteristic of which of the following infections require a specific receptor site to infect the host ?
1- antrax
2-syphillis
3-influenza ... ANSWER
4- dysentry
5-gas gangrene

Carcinoma of which of the following tissues is associated with ingestion of food contaminated with aspergillus
1- lip
2-lung
3-liver..... ANSWER
4-colon

can somebody pls explain how do we reach this answer ?? !!

 

[teethie]

.. i do nt know what is the answer here. confused now.

Axilla posterior wall includes all except:
a. humerus------------------forms lateral wall
b. serratus anterior----------forms medial wall
c. pectoralis major ... --------forms anterior wall
d. subscapularis--------------forms posterior wall
e. teres major---------------forms posterior wall

pectoralis major should be forming the anterior wall right ?! pls correct me if i am wrong

 

[asheer]

i have ny exam on 3rd of septmbr and am so damnnnnnnn tensed donno what to do did my micropath n bio hav to do anat and da !!!!!!!😕😕😕 hav to do asda tooooo do u guys think its gonna be ok !! 🙁

 

[teethie]

if you are doing revision then it is ok, you will be done, but if you are reading first time then you need to extend your date.

i have ny exam on 3rd of septmbr and am so damnnnnnnn tensed donno what to do did my micropath n bio hav to do anat and da !!!!!!!😕😕😕 hav to do asda tooooo do u guys think its gonna be ok !! 🙁

 

[teethie]

correct if wrong.

Need help with these Qs:

where are the Phagocytes present in tmj:
a. articular eminence
b. central portion of disc
(posterior area or retrodiscal area are not in options)

Radioopacity near Tmj is due to
a. zygomatic arch------------------🙂
b. tumor
c. cyst
d. maxillary tuberosity

Oxidative degeneration of pyruvic acid is due to
a. oxaloacetic acid
b. citrate

which of the following is deceased except one:
a. brain dna
b. mitichondria mRna
c. dentin radiograph
d. TRH

Polymerization chain reaction procedure:
a. DNA replication
b. DNA transcription--------------------🙂

DNA finger printing includes what
a. radiolabeled proteins
b. plasmids
c. replication or polymerization

Hepatocytes and pancreatic acinal cells are derived from
a. mesoderm
b. visceral mesoderm
c. parietal mesoderm


liver is endodermal donno abt hepatocytes.

Protrusion of hyoid bone
a. geniohyoid
b. stylohyoid
c. sternohyoid
d.Thyrohyoid
e. sternothyroid

condyle ossification or bone formation is formed by what age

In embryo Tmj chondrogenesis occur during
a. 6 weeks
b. 8 weeks
c. 12 weeks
d. 15 or 16 weeks

In child cartilage in Tmj
a. hyaline
b. fibrocartilage-------------------------🙂

crypts of leiberkuhn is seen in:
a. muscularis mucosa
b. muscularis externa
c. lamina propria
d. submucosa
e. serosa
(mucosa is not in options)

canthus of eye fractured. which bone is injured
a. frontal process of maxilla----------------not sure
b. maxillary process of frontal
c. sphenoid
d. maxilla
e. zygoma

Maxillary canine lingually abraded by which tooth
a. Distial of mand. canine
b. mesial of mand. 1st premolar

Axilla posterior wall includes all except:
a. humerus
b. serratus anterior
c. pectoralis major
d. subscapularis
e. teres major

vocal cords produce sound by which muscle
a. posterior cricoarytenoid with lateral arytenoid
b. transverse with lateral arytenoidroid
c. cricothyroid

caries involve all except
a. lactic acid
b. acetic acid
c. palmitic acid
d. oleic acid
e. linoleiic acid

In Y type mand 2nd premolar grooves are:
a. mesial, distal, central
b. mesiofacial, distofacial, central
(none of the options has lingual groove)

In Y type mand 2nd premolar groove size from larger to smaller:
same options as above

 

[teethie]

asheer, pb2007, can you clear the ventricle question?

no elmos, left anterior descending artery also supplies both right and left ventricles and it is the note given in dental decks that this artery is the most often involved in coronary occlusions.

bratdoc, i agree with your percentage but if according to you The LAD typically supplies 45-55% of the left ventricle (LV)
then where is the remanining percentage of blood going to? is not it the right ventricle.

please correct if i am wrong.

 

[wdent]

Need help with these Qs:

where are the Phagocytes present in tmj:
a. articular eminence
b. central portion of disc
(posterior area or retrodiscal area are not in options)

Radioopacity near Tmj is due to
a. zygomatic arch...........answer (radiopac.-becz white color on X-ray)
b. tumor
c. cyst
d. maxillary tuberosity

Oxidative degeneration of pyruvic acid is due to
a. oxaloacetic acid
b. citrate

which of the following is deceased except one:!!
a. brain dna
b. mitichondria mRna
c. dentin radiograph
d. TRH

Polymerization chain reaction procedure:
a. DNA replication
b. DNA transcription

DNA finger printing includes what
a. radiolabeled proteins
b. plasmids
c. replication or polymerization

Hepatocytes and pancreatic acinal cells are derived from
a. mesoderm
b. visceral mesoderm
c. parietal mesoderm

Protrusion of hyoid bone
a. geniohyoid.................answer
b. stylohyoid
c. sternohyoid
d.Thyrohyoid
e. sternothyroid

condyle ossification or bone formation is formed by what age

In embryo Tmj chondrogenesis occur during
a. 6 weeks
b. 8 weeks
c. 12 weeks
d. 15 or 16 weeks

In child cartilage in Tmj
a. hyaline
b. fibrocartilage...................answer!!!!

crypts of leiberkuhn is seen in:
a. muscularis mucosa
b. muscularis externa
c. lamina propria
d. submucosa
e. serosa
(mucosa is not in options)

canthus of eye fractured. which bone is injured
a. frontal process of maxilla
b. maxillary process of frontal
c. sphenoid
d. maxilla
e. zygoma

Maxillary canine lingually abraded by which tooth
a. Distial of mand. canine
b. mesial of mand. 1st premolar

Axilla posterior wall includes all except:Choices r weired there is error in askin this type of Quest !!!!!!!!!!!!!!!!!!!!!!!!!!!
a. humerus.................answer
b. serratus anterior......answer
c. pectoralis major
d. subscapularis...........answer
e. teres major.....

vocal cords produce sound by which muscle
a. posterior cricoarytenoid with lateral arytenoid
b. transverse with lateral arytenoidroid
c. cricothyroid

caries involve all except?Choice b,c,d,e are all wrong !!!!!!!
a. lactic acid
b. acetic acid
c. palmitic acid
d. oleic acid
e. linoleiic acid

In Y type mand 2nd premolar grooves are:
a. mesial, distal, central.....!!!answer!
b. mesiofacial, distofacial, central
(none of the options has lingual groove)

In Y type mand 2nd premolar groove size from larger to smaller:
same options as above

..................................................................................

 

[wdent]

asheer, pb2007, can you clear the ventricle question?

Teethie,
pls check nbde ist aid page 90

Right coronary art----------------->Right vent. post walls of Left vent.

Where as LAD : ant wall LV and interventr.septum

Hope this solves the mystery!😎

 

[pb2007]

asheer, pb2007, can you clear the ventricle question?

hi teethie
i was reading deck no 156 which mentions that posterior decending artery of right coronary supplies both ventricles on left side its left ant decending artery supplies both .i think the answer should be 2nd choice coz they have particularly mentioned it .

 

[pb2007]

The pterygomandibular space maybe approached intraorally in order to drain a purulent abscess . Which of the followng muscles is most likely to be incised -
1- masseter
2- temporalis
3- buccinator
4- medial pterygoid
5- inferior pharyngeal constrictor

pls explain

can some one confirm this answer is it medial ptherygoid for this ques or buccinator

 

[pb2007]

Which of the following agents is most often associated with fatalities following influenzal infections ?
1- Influenza virus
2- strep. mitis
3- strep pyogenes
4- staph aureus ...ANSWER
5- H. influenzae

Microorganisms characteristic of which of the following infections require a specific receptor site to infect the host ?
1- antrax
2-syphillis
3-influenza ... ANSWER
4- dysentry
5-gas gangrene

Carcinoma of which of the following tissues is associated with ingestion of food contaminated with aspergillus
1- lip
2-lung
3-liver..... ANSWER
4-colon

can somebody pls explain how do we reach this answer ?? !!

can someone explain the 1st two ques .i didnt find how influenza virus works .

 

[teethie]

wdent, please read decks card 156, i am ging with that card instead of nbde first aid.

pb2007 thanks for your confirmation for ventricle question.

regarding pterygomandibular space incision, i have no source to confirm. I tried to google it and also checked peterson oral surgery book, but did not find any source. but i think medial pterygoid can be the answer , i am thinking in terms of its boundaries.
if anyone else can confirm, i will appreciate.

Teethie,
pls check nbde ist aid page 90

Right coronary art----------------->Right vent. post walls of Left vent.

Where as LAD : ant wall LV and interventr.septum

Hope this solves the mystery!😎

Originally Posted by Cindrella
The pterygomandibular space maybe approached intraorally in order to drain a purulent abscess . Which of the followng muscles is most likely to be incised -
1- masseter
2- temporalis
3- buccinator
4- medial pterygoid
5- inferior pharyngeal constrictor

pls explain

 

[asheer]

hey teethi i think the ans for the ventricular BS is the left ant descending artery !!!!!! 🙂

and u r absolutely correct abt the medial pterygoid !!!! always remember during approaching the pterygomandibular space there are three things dat can be damaged the 1med pteryg
2the pterygomandibular raphae
3and the facial nerve if u go deep for anesthesia this is wat i tried remembering hope it helps and also learn the boundaries of pterygomandibular space its imp were this muscle makes ana imp contribuion🙂
Boundaries :

Lat. - medail of Mandibular ramus
Med. – lat of Med. Pterygoid muscle
Sup. – Lat. Pterygoid muscle
Post. – Parotid gland and its fascia
Ant. – Buccinator, superior constrictor of
pharynx, pterygomandibular raphe,
buccopharyngeal fascia
Contents : Lingual nerve and vessels
Inf. Alveolar nerve and vessels
Maxillary vessels
Pterygoid venous plexus
Sphenomandibular ligament

 

[teethie]

thanks asheer a lot 🙂

 

[teethie]

anatomy decks #214 which I am sure you all already know,

Only cranial nerve 3,4 5,(ophthalmic divison) and 6 th nerve passes through superior orbital fiisure..