Question

Read the following statements regarding spleen and select the correct option :-
(i) Spleen is a large bean-shaped organ which mainly contains lymphocytes and phagocytes
(ii) Spleen is a large reservoir of erythrocytes
(iii) Spleen is a primary lymphoid organ
(iv) Spleen acts as a filter of the blood by trapping blood-borne micro-organisms

• A. (i), (ii) and (iv)
• B. (ii) and (iv)
• C. (i), (ii) and (iii)
• D. (i) and (ii)

Answer 1

The correct option is A (i), (ii) and (iv)

Spleen is a secondary lymphoid organ. Secondary lymphoid organs are those organs where B-cells and T-cells undergo proliferation and differentiation.
Spleen is a large bean-shaped organ which mainly contains lymphocytes and phagocytes.
Spleen is a large reservoir of erythrocytes.
Spleen acts as a filter of the blood by trapping blood-borne micro-organisms.
Red bone marrow and thymus are the primary lymphoid organs.

So, the correct answer is option -d.