Body Fluids and Circulation

What would be the heart rate of a person if the cardiac output is 5 L, blood volume in the ventricles at the end of diastole is 100 mL and at the end of ventricular systole is 50 mL?

1. 100 beats per minute
2. 125 beats per minute
3. 50 beats per minute
4. 75 beats per minute

Match the items given in column I with those in column II and select the correct option given below.

1. (a)-(i), (b)-(ii), (c)-(iii)
2. (a)-(iii), (b)-(i), (c)-(ii)
3. (a)-(i), (b)-(iii), (c)-(ii)
4. (a)-(ii), (b)-(i), (c)-(iii)

Match the items given in column I with those in column II and select the correct option given below.

1. (a)-(i), (b)-(iii), (c)-(ii)
2. (a)-(iii), (b)-(ii), (c)-(i)
3. (a)-(ii), (b)-(iii), (c)-(i)
4. (a)-(i), (b)-(ii), (c)-(iii)

Adult human RBCs are enucleate. Which of the following statement(s) is/are most appropriate explanation for this feature?

1. A only
2. A, C and D only
3. B and C only
4. D only

The hepatic portal vein drains blood to liver from

1. stomach
2. kidneys
3. intestine
4. heart.

Blood pressure in the pulmonary artery is

1. more than that in the pulmonary vein
2. less than that in the venae cavae
3. same as that in the aorta
4. more than that in the carotid.

Name the blood cells, whose reduction in number can cause clotting disorder, leading to excessive loss of blood from the body.

1. Erythrocytes
2. Leucocytes
3. Neutrophils
4. Thrombocytes

Serum differs from blood in

1. lacking globulins
2. lacking albumins
3. lacking clotting factors
4. lacking antibodies.

Which one of the following animals has two separate circulatory pathways?

1. Whale
2. Shark
3. Frog
4. Lizard

Doctors use stethoscope to hear the sounds produced during each cardiac cycle. The second sound is heard when

1. AV node receives signal from SA node
2. AV valves open up
3. Ventricular walls vibrate due to gushing in of blood from atria
4. Semilunar valves close down after the blood flows into vessels from ventricles.