Question No:1

The duration of cardiac cycle in a normal man is

[A] 0.8 seconds
[B] 80 seconds
[C] 60 seconds
[D] 72 seconds



Question No:2

During systole of heart

[A] only atria contract
[B] only ventricles contract
[C] atria and ventricles contract separately
[D] atria and ventricles contract simultaneously



Question No:3

During diastole, blood

[A] enters the heart
[B] leaves the heart
[C] leaves the ventricle
[D] enters into lungs



Question No:4

During ventricular systole oxygenated blood is pumped into the

[A] aorta and deoxygenated blood is pumped into the pulmonary artery
[B] pulmonary artery and deoxygenated blood is pumped into the artery
[C] aorta and deoxygenated blood is pumped into pulmonary vein
[D] pulmonary vein and deoxygenated blood is pumped into pulmonary artery



Question No:5

To reach the left side of heart, the blood must pass through

[A] lungs
[B] liver
[C] kidneys
[D] sinus venosus



Question No:6

Mammals are said to have double circulation. It means

[A] blood vessels are paired
[B] there are two types of blood vessels attached to every organ
[C] there are two systems, one from the heart to the lungs and back to the rest of the body
[D] blood circulates twice through the heart



Question No:7

In mammals, veins differs from arteries in having

[A] thicker walls
[B] deeply present
[C] carry blood away from heart
[D] internal valves



Question No:8

An artery is

[A] thick-walled in which blood flows under low pressure
[B] thin-walled in which blood flows under high pressure
[C] thick-walled in which blood flows under high pressure
[D] thin-walled in which blood flows under low pressure



Question No:9

Cells constituting the wall of capillaries are

[A] parietal
[B] endothelial
[C] Oxyntic
[D] haemocytes



Question No:10

A muscular wall is absent in

[A] Venule
[B] Vein
[C] Capillary
[D] Arteriole



Question No:11

Contraction of right ventricle pumps blood into

[A] dorsal aorta
[B] pulmonary vein
[C] coronary artery
[D] pulmonary artery



Question No:12

Arteries carry oxygenated blood except in

[A] pulmonary
[B] cardiac
[C] hepatic
[D] systemic



Question No:13

When ventricular systole occurs

[A] atrial diastole coincides
[B] tricuspid and bicuspid valves close
[C] semi lunar valves guarding pulmonary artery and aorta are forced to open
[D] all



Question No:14

During cardiac cycle, about ______ % of ventricular filling occurs prior to atrial contraction. ______ % ventricular filling occurs due to atrial contraction

[A] 50, 50
[B] 70, 30
[C] 30, 70
[D] 10, 90



Question No:15

Which of the following events do not occur during joint diastole?
A. All four chambers of heart are in relaxed state
B. Tricuspid and bicuspid valves open
C. Action potential is conducted from SAN to AVN
D. Blood from the pulmonary veins and vena cava flows into the left and right ventricles respectively through the left and right atria
E. The Semi lunar valves are closed

[A] Only E
[B] Only C
[C] Only D
[D] Only A and B