Chemical Coordination and IntegrationHard
Question
Which one of the following four gland is correctly matched with the wccompanying description ?
Options
A.Thymus - Hyperactivity in young childern causes crtinism
B.Thymus - starts undergoing atrophy after puberty
C.Parathyroid - Secreteas parathormone which promo tes movement of calcium ions from blood into bone during calcification
D.Pancreas - Delta cells of the Islets of lengerhans secrete a hormone which stimulates secrete a hormone which stimulates glycolysis in liver
Solution
The thymus is an organ located in the upper anterior protein of the chest cavity just behind the sternum. The thymus continues to grow between birth and puberty and then begins to atropht. proportionl to thymic size, thymic activity is most active before puberty. Upon atrophy, the size and activityare dramatically reduced, and the organ is primarily replaced with fat the atrophy is due to the increased circulating level of sex hormones, and chemical or physical castration of an adult result in the thymus increasing i n size and activity.
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