Body Fluids and Circulation

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.

If you suspect major deficiency of antibodies in a person, to which of the following would you look for confirmatory evidence ?

1. Fibrinogen in plasma
2. Haemocytes
3. Serum albumins
4. Serum globulins

Erythropoiesis starts in

1. spleen
2. red bone marrow
3. kidney
4. liver

Which one of the following is correct?

1. Lymph = Plasma + RBC + WBC
2. Blood = plasma + RBC + WBC + Platelets
3. Plasma = Blood - Lymphocytes
4. Serum = Blood + Fibrinogen