Question

what are the chief sources of hormone secretion???
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Answer 1

Answer:

Nerve cells in the hypothalamus make chemicals that control the release of hormones secreted from the pituitary gland. The hypothalamus gathers information sensed by the brain (such as the surrounding temperature, light exposure, and feelings) and sends it to the pituitary.

Explanation:

Answer 2

Answer:

the endocrine system is made up of glands that makes hormones .. endocrine gland release documents . write(def- hormones- T) hormones into the into blood stream .... nerve cell in hypothalamus make chemical that control release of hormone secreted from pituitary glands ..