anatomy questions

[pbkal]

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hai
can anyone please answer these questions-
1)infection from saggital sinus drains into??
2)spread of infection from facial vein to cavernous sinus is through??

 

[uabsfm]

which are the largest cusps on the primary maxillary and mandibular molars?
please answer this q

 

[gudluk]

which are the largest cusps on the primary maxillary and mandibular molars?
please answer this q

largest cusp (primary maxillary and mandibular molars)- mesiobuccal

sharpest cusp- mesiolingual

 

[pbkal]

pls ans the question with explanation....

glucagon has all of the following actions except

a)increases plasma glucose
b)inc plasma free fattyacids and ketoacids
c)decreases plasma aminoacids
d)increases urea production

does glucagon promote lipolysis or lipogenesis??does it increase or decrease plasma fatty acid level??

 

[gudluk]

pls ans the question with explanation....

glucagon has all of the following actions except

a)increases plasma glucose
b)inc plasma free fattyacids and ketoacids
c)decreases plasma aminoacids(ans)
d)increases urea production


insulin inhibits lipolysis not glucagon.it promotes lipolysis.

glucagon increases the amnt of plasma amino acids.

 

[dentistus]

plz explain

Articular surfaces of most diarthrodial joints covered by

1) fibrocartilage
2) hyaline cartilage
3) elastic cartilage
4) articular disks

thanks

 

[uabsfm]

plz explain

Articular surfaces of most diarthrodial joints covered by

1) fibrocartilage
2) hyaline cartilage
3) elastic cartilage
4) articular disks

thanks

articular surfaces of the most diarthrodial joints are covered by hyaline cartilage, except TMJ in which articular surfaces are covered by dense fibrous connective tissue

 

[uabsfm]

1. A Downs patient come to clinic with his mother and wants to get amalgam restoration removed, what does the dentist do?

2. A patient comes to clinic wanting to get his tooth removed and does not want to listen to the pros and cons of the treatment, what does the dentist do?

a. Perform the treatment
b. Explain the pros and cons anyways and then perform the treatment
c. Refuse treatment
d. Explain the pros and cons and recall the patient

3. A hypoplasia of primary teeth which is limited to incisal thirds of incisors, incisal tips of canines, and occlusal portion of molars suggest what?

 

[krishna99]

which of the following cytokines stimulates b lymphocytes to differentiate into plasma cells?
IL1
IL2
IL3
IL4
IL5

in a section of epiphyseal plate of femur of 18 old male;;which is the zone in which cartilage lacunae appear swollen and chondrocytes are large??
-proliferation
-bone deposition
-reserve cartilage
-cartilage calcification
-hypertrophy and maturation

Which of the following affects the widest organ range?
varicella,
rubella,
Moluscam,
Herpes

 

[robhmnt]

which of the following cytokines stimulates b lymphocytes to differentiate into plasma cells?
IL1
IL2
IL3
IL4
IL5

Interleukin-2 produced by T-helper cells.

 

[krishna99]

P waves occuring in ST segment indicates ectopic beats originating in;
-atria
-AV node
- lower portion of bundle of his
-upper portion of bundle of his

cushings syndrome is characterized by foll except one;

- increased protein anabolism
-increased androgen levels
-hyperglycemia
-hypertension
-hyperkalemia

role of calcium in activation of cardiac muscle

-couple myosin n actin to form actinomyosin
-reduce inhibition of tropomyosin upon the myofilaments
-cause depolarization of muscle

 

[krishna99]

why scratching sensation is slow?
recuintion
summition

most good system survival rate in cancer of?
colon
lung
pancraece
esoghagus

how the condyle get the nutritions?
diffusion
osmosis

 

[krishna99]

1-staph.aureus most commonly causes:
a-pyoderma
b-septicemia
c-sore throat
d-chronic infection
e-exogenous infection

2- the antigenic component of which of the following vaccines is a capsular antigen?
a-influenza
b-poliovirus
c-hepetitis B
d-haemophilius influenzae -ans
e-mycobacterium tuberculosis

 

[robhmnt]

P waves occuring in ST segment indicates ectopic beats originating in;
-atria
-AV node
- lower portion of bundle of his (Let me know if I didn't screw up, and I will explain.)
-upper portion of bundle of his

cushings syndrome is characterized by foll except one;

- increased protein anabolism *it inhibits protein synthesis
-increased androgen levels
-hyperglycemia
-hypertension
-hyperkalemia

role of calcium in activation of cardiac muscle

-couple myosin n actin to form actinomyosin
-reduce inhibition of tropomyosin upon the myofilaments
-cause depolarization of muscle

Ca binds troponin, which enables troponin to remove tropomyosin from the actin binding site ---> myosin can bind now ---> muscle contracts.

 

[krishna99]

-prevotella intermedia is first detectable in the oral cavity

1.at birth

2. adolescence

3. immediately before periodontal disease

4. long after periodontal disease appears

 

[gudluk]

which of the following cytokines stimulates b lymphocytes to differentiate into plasma cells?
IL1
IL2(ans)
IL3
IL4
IL5

in a section of epiphyseal plate of femur of 18 old male;;which is the zone in which cartilage lacunae appear swollen and chondrocytes are large??
-proliferation
-bone deposition
-reserve cartilage
-cartilage calcification
-hypertrophy and maturation(ans)

Which of the following affects the widest organ range?
varicella,
rubella, (ans)
Moluscam,
Herpes
not sure about this one confused between rubella and herpes...

if anyone knows the correct answer plz let all of us know

 

[gudluk]

P waves occuring in ST segment indicates ectopic beats originating in;
-atria(ans)
-AV node
- lower portion of bundle of his
-upper portion of bundle of his

cushings syndrome is characterized by foll except one;

- increased protein anabolism(ans)
-increased androgen levels
-hyperglycemia
-hypertension
-hyperkalemia

role of calcium in activation of cardiac muscle
couple myosin n actin to form actinomyosin(ans)
-reduce inhibition of tropomyosin upon the myofilaments
-cause depolarization of muscle

hope this helps
take care

 

[gudluk]

1-staph.aureus most commonly causes:
a-pyoderma
b-septicemia (ans)
c-sore throat
d-chronic infection
e-exogenous infection
if the option is skin infection that will be answer

2- the antigenic component of which of the following vaccines is a capsular antigen?
a-influenza
b-poliovirus
c-hepetitis B
d-haemophilius influenzae -ans
e-mycobacterium tuberculosis

 

[krishna99]

Ca binds troponin, which enables troponin to remove tropomyosin from the actin binding site ---> myosin can bind now ---> muscle contracts.

role of calcium in activation of cardiac muscle

couple myosin n actin to form actinomyosin(ans)
-reduce inhibition of tropomyosin upon the myofilaments
-cause depolarization of muscle

I was wondering that why 3rd answer is not the right answer, in cardiac muscle depolarization by ca++ occurs , isnt it?

plz explain.............

 

[krishna99]

1-staph.aureus most commonly causes:
a-pyoderma
b-septicemia (ans)
c-sore throat
d-chronic infection
e-exogenous infection
if the option is skin infection that will be answer

2- the antigenic component of which of the following vaccines is a capsular antigen?
a-influenza
b-poliovirus
c-hepetitis B
d-haemophilius influenzae -ans
e-mycobacterium tuberculosis

I was thinking of exogenous infection or pyoderma for 1st q

 

[krishna99]

hope this helps
take care

cushings syndrome is characterized by foll except one;

- increased protein anabolism(ans)
-increased androgen levels
-hyperglycemia
-hypertension
-hyperkalemia

I think answer should be hyperkelemia as in cushing's syndrome aldosterone also increases so it will produce hpokelemia by retaining Na+ ions and pt have moon face, buffalo hump , weight gain so protein anabolism should increase,
plz explain

 

[krishna99]

which of the following cytokines stimulates b lymphocytes to differentiate into plasma cells?
IL1
IL2(ans)
IL3
IL4
IL5

in a section of epiphyseal plate of femur of 18 old male;;which is the zone in which cartilage lacunae appear swollen and chondrocytes are large??
-proliferation
-bone deposition
-reserve cartilage
-cartilage calcification
-hypertrophy and maturation(ans)

Which of the following affects the widest organ range?
varicella,
rubella, (ans)
Moluscam,
Herpes

I think answer should be herpes as there are couple of viruses they can affect multiple organs in the body. As such I dont have the confirm answer so more replies are invited
not sure about this one confused between rubella and herpes...

if anyone knows the correct answer plz let all of us know

 

[dentistus]

1. A Downs patient come to clinic with his mother and wants to get amalgam restoration removed, what does the dentist do?

doctor shd. listen to his mother

2. A patient comes to clinic wanting to get his tooth removed and does not want to listen to the pros and cons of the treatment, what does the dentist do?

a. Perform the treatment
b. Explain the pros and cons anyways and then perform the treatment
c. Refuse treatment
d. Explain the pros and cons and recall the patient

3. A hypoplasia of primary teeth which is limited to incisal thirds of incisors, incisal tips of canines, and occlusal portion of molars suggest what?

shd. remove the cause of hypoplasia 1st

Thanks
plz correct me if i m wrong

 

[uabsfm]

Ca binds troponin, which enables troponin to remove tropomyosin from the actin binding site ---> myosin can bind now ---> muscle contracts.

P waves occuring in ST segment indicates ectopic beats originating in;
-atria
-AV node
- lower portion of bundle of his (Let me know if I didn't screw up, and I will explain.)
-upper portion of bundle of his

cushings syndrome is characterized by foll except one;

- increased protein anabolism *it inhibits protein synthesis
-increased androgen levels
-hyperglycemia
-hypertension
-hyperkalemia

role of calcium in activation of cardiac muscle

-couple myosin n actin to form actinomyosin
-reduce inhibition of tropomyosin upon the myofilaments
-cause depolarization of muscle

hi robhmnt,
can you plz explain answer ?
thanx

 

[pbkal]

Which muscle assits in extension, adduction and medially rotates the upper arm ?

1) pectoralis major
2) latissimus dorsi
3) deltoid
4) teres major
5) teres minor

is 2 or 4 ans??

 

[pbkal]

Which of the following supplies derivatives of the first branchial arch??

a)glossopharyngeal
b)trigeminal
c)facial
d)vagus

 

[pbkal]

the cell type least likely to contain more than one nuclei is

a)skeletal muscle cell
b)cardiac muscle cell
c)smooth muscle cell

 

[dmn]

the cell type least likely to contain more than one nuclei is

a)skeletal muscle cell
b)cardiac muscle cell
c)smooth muscle cell

smooth muscle cell

 

[drbeevee]

Which of the following supplies derivatives of the first branchial arch??

a)glossopharyngeal
b)trigeminal
c)facial
d)vagus

ans is b

 

[pbkal]

smooth muscle cell

thanks for the ans....just got doubt since cardiac muscle also contains a centrally placed single nuclei per muscle fibre..

 

[pbkal]

Which of the following supplies derivatives of the first branchial arch??

a)glossopharyngeal
b)trigeminal
c)facial
d)vagus

ans is b

i thought the same...but this question is from decks and the ans is given as facial nerve.....so,got doubt...

 

[dmn]

i thought the same...but this question is from decks and the ans is given as facial nerve.....so,got doubt...

You can go to the dental decks' website, and get the corrections from the desks with errors. These card is one of them

 

[pbkal]

the spleen does not:

1) House lymphocytes
2) Filter foreign particles, damaged red blood cells and cellular debris from the blood
3) contain phagocytes
4) Change undifferentiated lymphocytes into T-lymphocytes

 

[topaiz]

the cell type least likely to contain more than one nuclei is

a)skeletal muscle cell
b)cardiac muscle cell
c)smooth muscle cell

c)smooth muscle cell

 

[topaiz]

the spleen does not:

1) House lymphocytes
2) Filter foreign particles, damaged red blood cells and cellular debris from the blood
3) contain phagocytes
4) Change undifferentiated lymphocytes into T-lymphocytes

Change undifferentiated lymphocytes into T-lymphocytes

 

[pbkal]

Change undifferentiated lymphocytes into T-lymphocytes

this is from dental decks 2006-2007.answer is given as-house lymphocytes.so,what is the right ans,pls post.

 

[dmn]

this is from dental decks 2006-2007.answer is given as-house lymphocytes.so,what is the right ans,pls post.

Correct answer : Change undifferentiated lymphocytes into T-lymphocytes

go to the dental decks website and get the corrections......... 😉

 

[topaiz]

this is from dental decks 2006-2007.answer is given as-house lymphocytes.so,what is the right ans,pls post.

dmn is correct as the corrected ans is change the undiffernted lymphocytes into T lymphocytes.
see the link http://www.dentaldecks.com/pages/morecorrections%20.aspx

 

[pbkal]

dmn is correct as the corrected ans is change the undiffernted lymphocytes into T lymphocytes.
see the link http://www.dentaldecks.com/pages/morecorrections .aspx

thanks for the link.i already referred this page.it doesnt has the corrections for 2006-2007 decks.it shows the corrections in new edition of decks,2009-2010 edition.

 

[pbkal]

can anyone pls send the link of corrections in 2006-2007 decks........i could not find that in dental decks wbsite.....
thanks..

 

[pbkal]

can anyone pls answer these questions-


1) the pathogenesis accounting for most cases of Down Syndrome is which of the following ?
a) Deletion
b) Mosaicism
c) Translocation
d) Nondisjunction
e) Autosomal recessive inheritance
2) the most prominent mechnism of spread of varicella zoster in a susceptible population is by which of the following routes ?
a) Parenterally
b) Insect vectors
c) Oral - anal
d) Respiratory
e) Direct skin-to-skin contact
3) Immunologic injury that involves the activation of complement as an important event in producing damage to tissue is found in which of the following reactions ?
a) Delayed type hypersenstivitity
b) Anaphylactice type hypersensitivity
c) Immune-complex mediated
d) Antibody-dependent cell-mediated cytotoxicity
4) During which of the following stages of viral replication would a virus be susceptible to the secretory IgA ?
a) Eclipse
b) Attachment
c) Maturation
d) Viral protein synthesis
e) Viral nucleic acid synthesis
5) the most effective means of preventing disease transmission in the dental office is based on which of the following concepts ?
a) Asepsis
b) Disinfection
c) Sterilization
d) Barrier techniques
e) Universal precautions
6) In granulomatous inflammation which of the following processes is most likely to predominate ?
a) Exudation
b) Congestion
c) Diapedesis
d) Fibroplasia
e) Transudation

 

[pbkal]

can anyone pls answer these questions...

1) the highest and sharpest cusp on the deciduous mandibular first molar is the
a) mesiolingual
b) distolingual
c) mesiobuccal
d) distobuccal
2) concerning teeth in contact the rounding of the mesiofacial and distofacial line angles contributes to the formation of which of the following embrasures ?
a) Facial
b) Lingual
c) Cervical
d) Occlusal or incisal
e) Gingival
3) Which of the following statements is always true of dental hypoplasia ?
a) Affected teeth are always stained in varying hues.
b) It is an inevitable consequence of water fluoridation
c) It is more common in adult females than in teenage males.
d) If it is going to occur, it will be present when the teeth erupt
4) which of the following anatomical entities of the maxillary first molar slides through the angled sulcus found on the occlusal surface of a mandibular first molar ?
a) Mesial marginal ridge
b) Distal marginal ridge
c) Mesiobuccal cusp
d) Distobuccal cusp
e) Oblique ridge

5) which of the following marginal ridges have little or no contact in ideal centric and eccdentric maxillomandibular contact relationships ?
a) Distal of maxillary second premolar
b) Distal of mandibular first premolar
c) Distal of mandibular second premolar
d) Mesial of maxillary canine
e) Mesial of Mandibular first premolar

1. (a) and (b)
2. (a) and (d)
3. (b), (c) and (d)
4. (b), (c) and (e)
5. (d) and (e)

 

[pbkal]

4) which of the following histologically describes oral mucosa on the floor of the mouth?
a non keratinised epithelium with lamina propria and sub mucosa
b nonkeratinised epithelium with lamina propria but no sub mucosa

is the ans (b)??

 

[pbkal]

which of the following statements BEST describe GTP-binding
proteins(G-Proteins)?
a.are important components of steroid harmone signal transduction
b.catalize the reaction which produces diacylglycerol
c.are tightly bound to adenylate cyclase
d.usually inactive protein kinase C
e.are membrane proteins

 

[pbkal]

how many transverse ridges r present in mand ist molar??

1 or 2??

 

[Twinkle1]

can anyone pls answer these questions-


1) the pathogenesis accounting for most cases of Down Syndrome is which of the following ?
a) Deletion
b) Mosaicism
c) Translocation
d) Nondisjunction
e) Autosomal recessive inheritance

2) the most prominent mechnism of spread of varicella zoster in a susceptible population is by which of the following routes ?
a) Parenterally
b) Insect vectors
c) Oral - anal
d) Respiratory
e) Direct skin-to-skin contact

3) Immunologic injury that involves the activation of complement as an important event in producing damage to tissue is found in which of the following reactions ?
a) Delayed type hypersenstivitity
b) Anaphylactice type hypersensitivity
c) Immune-complex mediated
d) Antibody-dependent cell-mediated cytotoxicity

4) During which of the following stages of viral replication would a virus be susceptible to the secretory IgA ?
a) Eclipse
b) Attachment
c) Maturation
d) Viral protein synthesis
e) Viral nucleic acid synthesis

5) the most effective means of preventing disease transmission in the dental office is based on which of the following concepts ?
a) Asepsis
b) Disinfection
c) Sterilization
d) Barrier techniques
e) Universal precautions

 

[Twinkle1]

which of the following statements BEST describe GTP-binding
proteins(G-Proteins)?
a.are important components of steroid harmone signal transduction
b.catalize the reaction which produces diacylglycerol
c.are tightly bound to adenylate cyclase
d.usually inactive protein kinase C
e.are membrane proteins

 

[Twinkle1]

4) which of the following histologically describes oral mucosa on the floor of the mouth?
a non keratinised epithelium with lamina propria and sub mucosa
b nonkeratinised epithelium with lamina propria but no sub mucosa

 

[pbkal]

can anyone pls answer these questions-


1) the pathogenesis accounting for most cases of Down Syndrome is which of the following ?
a) Deletion
b) Mosaicism
c) Translocation
d) Nondisjunction
e) Autosomal recessive inheritance

2) the most prominent mechnism of spread of varicella zoster in a susceptible population is by which of the following routes ?
a) Parenterally
b) Insect vectors
c) Oral - anal
d) Respiratory
e) Direct skin-to-skin contact

3) Immunologic injury that involves the activation of complement as an important event in producing damage to tissue is found in which of the following reactions ?
a) Delayed type hypersenstivitity
b) Anaphylactice type hypersensitivity
c) Immune-complex mediated
d) Antibody-dependent cell-mediated cytotoxicity

4) During which of the following stages of viral replication would a virus be susceptible to the secretory IgA ?
a) Eclipse
b) Attachment
c) Maturation
d) Viral protein synthesis
e) Viral nucleic acid synthesis

5) the most effective means of preventing disease transmission in the dental office is based on which of the following concepts ?
a) Asepsis
b) Disinfection
c) Sterilization
d) Barrier techniques
e) Universal precautions

thanks for the answers.in question 3,activation of complement occurs in both immune complex mediated and cell mediated cytotoxicity.so,got doubt,which is the answer.can u explain y type III hypersensitivity is not answer?

 

[pbkal]

how many transverse ridges r present in mand ist molar??

1 or 2??

ans is 2.

 

[pbkal]

ans is 2.
does mandibular premolar have transverse ridge?