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- 1. Multiple Choice
1. The endocardial cushions of the heart contributes in the development of interventricular septum.
Which of the following structures most like leads to development of this cushions?
A. Neural crest cells
B. Angiogenic cells
C. Cardiac Jelly
D. Primitive atrium
- 2. Multiple Choice
2. The posterior interventricular artery is located in posterior interventricular groove.
Which of the following veins most likely located with this artery in the same groove?
A. Great cardiac vein
B. Small cardiac vein
C. Middle cardiac vein @
D. Oblique vein of the left atrium
- 3. Multiple Choice
3. The artrioventricular groove demarcates the boundary between the right atrium and right ventricle.
Which of the following artery most likely located in this groove?
A. Right coronary artery
B. Right Marginal artery
.C Right conus artery
D. SA nodal artery
- 4. Multiple Choice
4. The femoral artery is a continuation of external iliac artery.
Which of the following branches of the this artery most likely supply the knee joint?
A. Superficial external pudendal
B. Profunda femoris artery
C. Deep external pudendal
D. Descending genicular artery
- 5. Multiple Choice
5. The interior wall of right ventricle contains modification of myocardium of heart.
Which of the following modification most likely present in this chamber of the heart?
A. Papillary muscles
B. Musculi pectinati
C. Crista terminalis
D. Chorda tendinae
- 6. Multiple Choice
6.Which of the following phases of cardiac action potential has the highest potassium permeability?
A) 0
B) 1
C) 2
D) 3
- 7. Multiple Choice
7Which of the following structures has the slowest rate of conduction of the cardiac action potential?
A) Atrial muscle
B) Anterior internodal pathway
C) A-V bundle fibers
D) Purkinje fibers
- 8. Multiple Choice
8.Which of the following membrane potential (threshold level) at which the S-A node discharges?
A) −40 mV
B) −55 mV
C) −65 mV
D) −85 mV
- 9. Multiple Choice
9.Which of the following factors will cause the cardiac output to increase?
A) Increase in total peripheral resistance
B) Increase in end diastolic volume
C) Decrease in myocardial contractility
D) Decrease in heart rate
- 10. Multiple Choice
10.Which of the following ECG waves represents septal depolarization?
A) Q
B) R
C) S
D) T
- 11. Multiple Choice
11.The most sensitive early marker for myocardial infarction is
a) Troponin
b) Lactate dehydrogenase
c) Creatine kinase-MB
d) Myoglobin
- 12. Multiple Choice
12. Which of the following lipoproteins is produced via the exogenous lipoprotein pathway?
a) LDL-C
b) HDL-C
c) IDL- C
d) Chylomicron
- 13. Multiple Choice
13.De novo fatty acid synthesis usually signifies which of the following?
a) An excess of fat intake
b) A depletion of energy yielding substrates
c) Only occurs with prolonged fasting
d) An excess of energy yielding substrates
- 14. Multiple Choice
14. Apo CII and Apo E ( that are responsible for
maturation of VLDL ) comes from :
A.LDL
B. HDL
C. Chylomicrons
D.IDL
- 15. Multiple Choice
15.which of the following is LCAT responsible for :
A. Converting cholesterol to cholesterol ester
B. transfer of cholesterol to lipoproteins
C. Degradation of HDL in liver
D. Degradation of chylomicrons
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