Question

A portal system is that in which

A. A vein begins from an organ and ends in heart
B. An artery breaks up in an organ & restarts by the union of its capillaries
C. The blood from gut is brought in to kidneys before it is poured in to heart
D. A vein breaks up in an organ in to capillaries & restarts by their union as a new vein in the same organ  
Answer :   A vein breaks up in an organ in to capillaries & restarts by their union as a new vein in the same organ

Releted MCQ Question on
Zoology >> Body Fluids and Circulation

Releted Question 1

Adult human RBCs are enucleated. Which of the following statement(s) is/are most appropriate explanation for this feature?
(1) They do not need to reproduce
(2) They are somatic cells
(3) They do not metabolize
(4) All their internal space is available for oxygen transport

A. only (1)
B. (1), (3) and (4)
C. (2) and (3)
D. only (4)
Releted Question 2

Reduction in pH of blood will

A. reduce the rate of heart beat
B. reduce the blood supply to the brain
C. decrease the affinity of haemoglobin with oxygen
D. release bicarbonate ions by the liver
Releted Question 3

Which one of the following is correct ?

A. Serum = Blood + Fibrinogen
B. Lymph = Plasma + RBC + WBC
C. Blood = Plasma + RBC + WBC
D. Plasma = Blood - Lymphocytes
Releted Question 4

Erythropoiesis starts in :

A. Liver
B. Spleen
C. Red bone marrow
D. Kidney

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Body Fluids and Circulation


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