PHGY 210 Lecture Notes - Lecture 11: Adrenocorticotropic Hormone, Cholesterol, Menopause
Document Summary
In living organism-> must be coordination of physiological activities taking place simultaneously. Cns & endocrine system = represent the 2 major means to coordinate all 6 functions. Communication between cells not in contact - achieved through chemical substances in blood stream. Receptors on distant target cells to specific physiological effect. 1- anterior pituitary gland -> secrete lh & fsh. 2- lh & fsh carried by blood circulation to gonads target site (ovary/testis) 3- lh & fsh cause gonads to secrete steroid hormones = estrogen/androgen. Plasma hormone a plasma hormone b. Involves 6 steps - each represent point of physiological control (can be increased/inhibited) 6- removal of hormone which often terminates cellular response - some have short half-life. By endocrine cells *or by neurons for neurohormone. By endocrine cells * or by neurons for neurohormone into circulation. To target site by blood stream - attached to carrier proteins when. Biochemical changes at cell/physiological response to chemical events.
