BIO 211 Lecture Notes - Lecture 10: Growth Hormone–Releasing Hormone, Hypophyseal Portal System, Gonadotropin-Releasing Hormone
4 Aug 2020
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Document Summary
Seven of them travel through the portal system and regulate the activities of the. Five are releasing hormones that stimulate the anterior pituitary to secrete its anterior pituitary hormones. Two are inhibiting hormones that suppress pituitary secretion. Somatostatin (also known as growth hormone inhibiting hormone (ghih) or somatotropin release-inhibiting hormone) Most of these hypothalamic hormones control the release of just one anterior pituitary hormone. Except gonadotropin releasing hormone which controls the release of both. The hypothalamus secretes releasing and release-inhibiting hormones into capillaries. These hypothalamic tropic hormones are transported to the anterior pituitary through the hypothalamo-pituitary portal vein in the anterior pituitary, hypothalamic releasing or release-inhibiting hormones alter the secretion of anterior pituitary tropic hormones. A trophic (tropic) hormone controls the secretion of another hormone. Hypothalamic tropic hormones and the hypothalamic-hypophyseal portal system. Hypophyseal portal system: carries blood between two capillary beds without going through the heart. Regulates hormone secretion by another endocrine gland.
