Cardiovascular System Physiology Set 2

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Physiology (Cardio-Vascular System Set 2)

MCQ

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1. The systolic pressure in the left ventricle is:

A) 130 mmHg

B) 110 mmHg

C) 150 mmHg

D) 80 mmHg

E) 100 mmHg

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2. A-C interval is prolonged in:

A) A-V nodal rhythm

B) first degree heart block

C) pulmonary hypertension

D) all of the above

E) non of the above

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3. QRS complex is due to:

A) ventricular repolarization

B) ventricular depolarization

C) atrial depolarization

D) atrial repolarization

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4. The greatest percentage of blood volume is found in the :

A) Heart

B) Aorta

C) Distributing arteries and arterioles

D) capillaries

E) venules and veins

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5. All are involved in ventricular filling except:

A) atrial systole phase

B) maximum ejection phase

C) maximum filling phase

D) reduced filling phase

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6. Pulses alternans occurs in

A) extrasystoles

B) arteriosclerosis

C) heart failure

D) constrictive pericarditis

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7. During the reduced ejection phase, which one of the following is true:

A) left atrial pressure is falling

B) aortic pressure is falling below left ventricular pressure

C) the A-V valves are closed

D) left ventricular pressure is constant

E) the QRS complex terminates just before this phase

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8. Y wave in jugular venous pulse occurs in

A) isometric contraction phase

B) isometric relaxation phase

C) maximum filling phase

D) maximum ejection phase

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9. Diacrotic notch is due to:

A) sudden closure of AV valves

B) sudden closure of aortic valve

C) sudden decrease in aortic pressure

D) marked decrease in ventricular pressure

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10. Ventricular pressure is higher than the atrial pressure in all phases
of the cardiac cycle except in:

A) isometric contraction phase

B) atrial systole phase

C) maximum ejection phase

D) reduced ejection phase

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11. P-R interval is prolonged in all the following cases except:

A) A-V nodal rhythm

B) atrial hypertrophy

C) high vagal tone

D) first degree heart block

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12. Pulsus deficit is detected in:

A) complete heart block

B) atrial fibrillation

C) heart failure

D) sinus tachycardia

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13. Systolic pressure in right ventricle is:

A) 35 mmHg

B) 25 mmHg

C) 15 mmHg

D) 45 mmHg

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14. The longest wave in ECG is:

A) P wave

B) T wave

C) Q wave

D) R wave

E) S wave

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15. P wave is due to:

A) atrial depolarization

B) atrial repolarization

C) atrial systole

D) atrial diastole

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16. C wave in jugular venous pulse occurs in:

A) isometric contraction phase

B) isometric relaxation phase

C) maximum ejection phase

D) atrial systole phase

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17. All cardiac valves are opened in:

A) isometric relaxation phase

B) isometric contraction phase

C) maximum filling phase

D) all of the above

E) non of the above

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18. The P wave of the ECG occurs at:

A) the beginning of atrial contraction

B) the end of atrial contraction

C) the beginning of ventricular contraction

D) the end of ventricular contraction

E) non of the above

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19. Cannon waves appear in:

A) Complete heart block

B) AV nodal rhythm

C) ventricular extrasystole

D) non of the above

E) all of the above

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20. AV valves are opened in:

A) isometric contraction phase

B) atrial systole phase

C) protodiastolic phase

D) maximum ejection phase

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21. Diacrotic wave is caused by

A) escape of blood from the aorta to the periphery

B) elastic recoil of the aorta leading to increased aortic pressure

C) aortic regurgitation of blood

D) increase aortic distension

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22. From the causes of diastolic murmur :

A) stenosis of aortic valve

B) stenosis of pulmonary valve

C) stenosis of mitral valve

D) ntraventricular septal defect

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23. First heart sound occurs in:

A) isometric contraction phase

B) atrial systole phase

C) isometric relaxation phase

D) maximum filling phase

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24. Water hammer pulse occurs in:

A) arteriosclerosis

B) hyperthyroidism

C) aortic regurgitation

D) all of the above

E) non of the above

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25. QRS complex lies in:

A) isometric contraction phase

B) isometric relaxation phase

C) maximum filling phase

D) maximum ejection phase

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Cardiovascular System Physiology Set 2

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