The adrenal medulla secretes which hormone during times of excitement, stress, and exercise?
A) thymosin
B) norepinephrine
C) testosterone
D) erythropoietin
E) mineralcorticoids
B
Explanation:
A) Thymosin, produced by the thymus, is a hormone that stimulates the development of the immune system.
C) Testosterone, which is produced by the testes, functions to stimulate the maturation and maintenance of the male sex organs.
D) Erythropoietin, secreted by the kidneys, stimulates the bone marrow to produce red blood cells.
E) Mineralocorticoids, produced by cells of the adrenal cortex, function to regulate sodium ion levels in the blood.
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