Chemical Coordination And Integration Question 12
Which one of the following four glands is correctly matched with the accompanying description?
Options:
A) Thyroid - Hypofunction in young children causes cretinism.
B) Thymus - Starts undergoing atrophy after puberty.
C) Parathyroid - Secretes parathormone which promotes movement of calcium ions from blood into bones during calcification.
D) Pancreas - Delta cells of Islets of Langerhans secrete a hormone which inhibits glycolysis in liver.
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Answer:
Correct Answer: B
Solution:
[b] Thymus starts functioning in the embryonic stage itself, becomes active during childhood and undergoes regression and gradually stops functioning in old individuals.
So, production of thymosin decreases.
As a result, immune responses of older persons become weak.
BETA
