alleryThe hormone thymosin, which stimulates the production and differentiation of lymphocytes, is secreted by the:
APancreas
BThymus gland
CPituitary gland
DAdrenal cortex
Answer & Solution
Correct answer: B. Thymus gland
1. The thymus is partly endocrine and partly lymphoid, lying in the upper chest.
2. It secretes the hormone thymosin.
3. Thymosin stimulates the production and differentiation of lymphocytes and boosts immune function.
4. Pancreas, pituitary and adrenal cortex secrete other hormones, so they are ruled out.
_Source: Samacheer Kalvi (TN SCERT) Class 10 Science, Unit 16 Plant and Animal Hormones "Thymus Gland", p.245_
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