Physiology 2130 Lecture Notes - Lecture 13: Thyrotropin-Releasing Hormone, Thyroid, Anterior Pituitary
22 Mar 2016
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These hormones then travel throughout the body to their target site to initiate their effect. The endocrine system consists of a series of glands that secrete different chemicals into the blood. The maintenance of the internal environment [body temperature, body fluid volume, osmolality, etc. ] Unlike the nervous system, endocrine system are slower to take effect yet last longer and are generally more widespread throughout the body. Endocrine system can indirectly affect organs at a distance by secreting chemicals into the blood. An endocrine gland is a group of specialized cells that synthesize, store, and release a very special. This special chemical is called a hormone chemical into blood. Hormone will either stimulate or inhibit the target cell. Glands in the body: hypothalamus & pituitary gland. Thyroid: adrenal, pancreas, gonads [ovaries = female ; testes = male] All hormones can be divided into 3 basic categories based on their chemical makeup:
