Which one of the following four glands is cor | vedclass

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(B) The thymus is an organ located in the upper anterior portion of the chest cavity just behind the sternum. The thymus continues to grow between bir

Vedclass · Accepted Answer

Thymus $-$ Starts undergoing atrophy after puberty

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(B) The thymus is an organ located in the upper anterior portion of the chest cavity just behind the sternum. The thymus continues to grow between birth and puberty and then begins to atrophy. Proportional to thymic size,thymic activity is most active before puberty. Upon atrophy,the size and activity are 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 results in the thymus increasing in size and activity. In contrast,other options are incorrect: Thyroid hyperactivity causes hyperthyroidism,not cretinism (which is caused by hypothyroidism); Parathormone increases blood calcium levels by mobilizing it from bones; and Delta cells of the pancreas secrete somatostatin,not a hormone that stimulates glycolysis.

Which one of the following four glands is correctly matched with the accompanying description?

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