Question

 Which of the following statements is true for lymph? [CBSE AIPMT 2002]

(a) WBC and serum

(b) All components of blood except RBCs and some proteins

(c) RBCs, WBCs and plasma

(d) RBCs, proteins and platelets

Answer/Explanation

Ans. (b)

Lymph is known as blood minus RBCs and some proteins. The main site of lymph formation is interstitial space and normally the rate of lymph formation is equal to the rate of its return to blood stream.

Question

 Which of the following is not main function of lymph glands? [CBSE AIPMT 1998]

(a) Forming WBC

(b) Forming antibodies

(c) Forming RBC

(d) Destroying bacteria

Answer/Explanation

Ans. (c)
Cells of lymph nodes perform the following functions. (a) produce lymphocytes (b) synthesise antibodies (c) destroy bacteria by phagocytosis.

Question

 The lymph serves to [CBSE AIPMT 1995]

(a) transport oxygen to the brain

(b) transport carbon dioxide to the lungs

(c) return the interstitial fluid to the blood

(d) return the WBCs and RBCs to the lymph nodes

Answer/Explanation

Ans. (c)
Lymph acts as a middle man between the blood and tissue cells. Lymph is a transparent fluid derived from blood and other tissues which accumulates in the interstitial spaces as the interstitial fluid and it passes on food and $\mathrm{O}_2$ from blood to tissue cells and handed ones excretory wastes, hormones and $\mathrm{CO}_2$ from the body cells to the blood.

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