MISCELLENOUS
VACCINATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The spleen is a primary lymphoid organ.
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True
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False
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Either A or B
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None of the above
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Explanation:
Detailed explanation-1: -Primary lymphoid organs: These organs include the bone marrow and the thymus. They create special immune system cells called lymphocytes. Secondary lymphoid organs: These organs include the lymph nodes, the spleen, the tonsils and certain tissue in various mucous membrane layers in the body (for instance in the bowel).
Detailed explanation-2: -(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.
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