Lets discuss questions of NBDE 1

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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.
 
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if patient has left canine protection the ML surface pf maxillary right first molar contacts with distouccal surface mandibular right 1st molar during left excursion .This contact is
a non working side interfence
b normal and non working side interfence
 
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perikaryon of a sympathetic nerve is located in
dorsal root ganglion
posterior
intermediolateral region of spinal cord
 
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dental material said:
if patient has left canine protection the ML surface pf maxillary right first molar contacts with distouccal surface mandibular right 1st molar during left excursion .This contact is
a non working side interfence
b normal and non working side interfence
Click to expand...


nonworking side interfence
not sure
 
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When viewed occlusualy, the aveoli of which of the following groups of teeth tend to be aligned nearest to a straight line?
1. Right and left maxilary central and lateral incisors
2. Right and left mandibular central and alteral incisors
3. Maxillary and left mandibular central and lateral incisors
4.All amxillary first premolars and first molars
5.All mandibular anterior teeth.

In the developing tooth boundary between pre ameloblast and pre odontoblast corresponds best to the boundary between which,

1. Dermis and Hypodermis
2. Or Epidermis and Dermis

can some one explain for answer too
 
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which cell type in the newly forming bone is most mitotic
osteogenic progenitor or osteoblast precursor
 
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osteoblast precursors are osteoprogenitor cells,answer is both are same,and these will be more in newly formed bone tissue.


gaya said:
which cell type in the newly forming bone is most mitotic
osteogenic progenitor or osteoblast precursor
Click to expand...
 
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q] the clearance of several substances was measured at constant GFR n constant Urine Flow rate , but at increasing plasma Concentrations of substances .Under these conditions , clearance will increase at high plasma conc for which substance?
creatinine
Mannitol
Penicillin
phosphate
Urea

q] Incisal guidance is increased by?

q] deficit in inferior oblique muscle is revealed by?
elevate the abducted eye
elevate the adducted eye
 
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docdk said:
q] the clearance of several substances was measured at constant GFR n constant Urine Flow rate , but at increasing plasma Concentrations of substances .Under these conditions , clearance will increase at high plasma conc for which substance?
creatinine--answer
Mannitol
Penicillin
phosphate
Urea

q] Incisal guidance is increased by?

q] deficit in inferior oblique muscle is revealed by?
elevate the abducted eye
elevate the adducted eye--answer

not sure about both the answers.
inferior oblique is for abuduction(lateral) and superior direction so ithink if deficit then eyr would be medial (adducted) side.
Click to expand...
 
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A person's blood is mixed separately with Anti-A serum,Anti-B serum and anti-Rh serum.Agglutination occurs in each case.This person has what blood types?

A)Rh(+),type O
B)Rh(+),type AB

HIV virus can directly infect all of the following cells except

A)neurons
B)macrophages
C)CD4 lymphocytes
D)CD8 lymphocytes

Jaundice is characteristic of all of the following except

A)aplastic anemia
B)liver cell damage
C)excessive hemolysis
D)bile duct obstruction
E)Carcinoma of head of pancreas

Please give the right answers with explanations.Thanks.
 
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incisal guidance is increased by ...decrease in overjet and increased overbite
 
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]A person's blood is mixed separately with Anti-A serum,Anti-B serum and anti-Rh serum.Agglutination occurs in each case.This person has what blood types?

A)Rh(+),type O
B)Rh(+),type AB answer
this person is AB type with A and B antigen on his rbc,so when u give him anti A and antiB serum(antibodies )these will agglutinate


HIV virus can directly infect all of the following cells except

A)neurons
B)macrophages
C)CD4 lymphocytes
D)CD8 lymphocytes answer
HIV will kill all other cells using CD8 cells


Jaundice is characteristic of all of the following except

A)aplastic anemia answer
B)liver cell damage
C)excessive hemolysis
D)bile duct obstruction
E)Carcinoma of head of pancreas

all other will affect liver function aplastic anemia is due to bone marrow depression,but some cases (2%)aplastic will appear due to acute viral hepatitis

hope i am right,

Please give the right answers with explanations.Thanks.[/quote]
 
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Thanks for replying.

1)AB is a universal recipient,so how can his blood clot when any other blood type is given?I think it is given wrongly in the key.

3)How does carcinoma of the head of pancreas cause jaundice?
 
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make you smile said:
Thanks for replying.

1)AB is a universal recipient,so how can his blood clot when any other blood type is given?I think it is given wrongly in the key. yes it is universal recipient ,but not to antibodies serum,they are recepients to O ,AB ,A,and B but not to anti A or antiB


3)How does carcinoma of the head of pancreas cause jaundice?

Jaundice occurs when the tumor grows and obstructs the common bile duct, which runs partially through the head of the pancreas. Tumors of the head of the pancreas (approximately 60% of cases) are more likely to cause jaundice by this mechanism.
Click to expand...
 
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dental material said:
When viewed occlusualy, the aveoli of which of the following groups of teeth tend to be aligned nearest to a straight line?
1. Right and left maxilary central and lateral incisors
2. Right and left mandibular central and alteral incisors
3. Maxillary and left mandibular central and lateral incisors
4.All amxillary first premolars and first molars
5.All mandibular anterior teeth.

correct me
Click to expand...
 
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armorshell said:
Do any of you guys have Google? Just wondering considering the sheer number of these questions that could be easily answered by Google or wikipedia.
Click to expand...
d00d dn't h8 do u hv relsd qs plz pm all tx plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz
 
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phosphorylation of pyruvite kinase occurs by glucagon,it occurs when glucose levels are low,phosphorylation inactivates pyruvite kinase ans so decrease glucose consumtion in glycolysis.in conclusion phosphorylation occurs inorder to proceed glycogenolysis and gluconeogenesis.enymes for these 2 pathways are glycogen phosphorylase and fructose 1,6 -biphosphatase respectivly.so answer is glycogen phosphorylase.


hope i am right,
 
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metrogyl80 said:
phosphorylation of pyruvite kinase occurs by glucagon,it occurs when glucose levels are low,phosphorylation inactivates pyruvite kinase ans so decrease glucose consumtion in glycolysis.in conclusion phosphorylation occurs inorder to proceed glycogenolysis and gluconeogenesis.enymes for these 2 pathways are glycogen phosphorylase and fructose 1,6 -biphosphatase respectivly.so answer is glycogen phosphorylase.

Yes you are right.but in gluconeogenesis pyruvalte caboxylase not fructose1,6-biphosphotase.correct me,thanks


I think phosphorylation of Pk occurs when there is high levels of glucose ,so i think insulin stimulates this rather than glucagon,so glycogensynthesis and gluconeogensis occur rather than glycogenolysis .hope i am correct.thanks
Click to expand...
 
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pulp horns subject to exposure easliy?

a Mesiolingual of 1st molar
b mesiobuccal of mandibular 1st molar
c Distobuccal of mandibular 1st molar
d buccal of mandibular 1st premolar
e lingual of mandibular of 2nd premolar
 
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I think phosphorylation of Pk occurs when there is high levels of glucose ,so i think insulin stimulates this rather than glucagon,so glycogen synthesis and gluconeogensis occur rather than glycogenolysis .

answers is glycogen synthesis

correct me
 
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molar9 said:
I think phosphorylation of Pk occurs when there is high levels of glucose ,so i think insulin stimulates this rather than glucagon,so glycogen synthesis and gluconeogensis occur rather than glycogenolysis .

answers is glycogen synthesis

correct me
Click to expand...

Pyruvate Kinase is ACTIVATED by insulin..so Insulin doesnt Phosphorylate Pk...GLUCAGON does it and it inactivates it! and the reason it does it is explained very well above by metrogyl!!!
 
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KiTmAn said:
Pyruvate Kinase is ACTIVATED by insulin..so Insulin doesnt Phosphorylate Pk...GLUCAGON does it and it inactivates it! and the reason it does it is explained very well above by metrogyl!!!
Click to expand...

capital letters are considered to be shouting.Be nice!!!!
 
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q] Lingual nerve passes
Superficial to myoglossus
deep to the myoglossus
between diagastric n myoglossus
superficial to diagastric
 
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docdk said:
q] Lingual nerve passes
Superficial to myoglossus
deep to the myoglossus
between diagastric n myoglossus
superficial to diagastric
Click to expand...


i think superficial to the mylohyiod because it runs between the hyoglossus and deep ppart of the sub mandibular
correct me if i m wrong
 
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muscle tat joins together n meets at the midline of the bottom of the mouth is?

right before an infarct ,patient most likely had?
 
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docdk said:
muscle tat joins together n meets at the midline of the bottom of the mouth is?

right before an infarct ,patient most likely had?
Click to expand...
1) Go google "mylohyoid" or buy a used copy of Netter. This is basic anatomy for a dentist, and it's important to know it cold.

2)
a. Coronary artery disease
b. Atypical chest pain
c. Diminished exercise tolerance
d. Double cheeseburger
e. All of the above.
 
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if the mandibular canine on right side is lost ,how does it effect the protrussive contacts on left canine?
 
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phosphatase enzyme acting on nucleotide produces
ribose 5 phosphate
free ribose
deoxyribose
nucleoside
 
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