PHGY 210 Study Guide - Final Guide: Gastric Pits, Macrophage, Trypsinogen
25 Apr 2018
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Document Summary
Many glands with specialized cells/ organs that secrete substances to be used or eliminated from the body: all secrete hormones. Six main functions: maintain constant internal environment via regulation of metabolism + water/ electrolyte balance, adaptive stress response, growth + development, reproduction, rbc production, integration with autonomic ns regulating circulation and digestive functions. Amine thyroid + steroid hormones: key enz = adrenal cortex only organ that makes cholesterol, cannot be stored. Peptide hormones and catecholamines: binds to receptor surface, activation of secondary messengers, examples, cyclic amp, epinephrine activated, calcium, phospholipase c activation. Pituitary pg: vasopressin antidiuretic hormone (adh, enhance water retention by kidneys, contraction of arteriolar smooth muscles, oxytocin stimulates contraction of uterine smooth muscle cells during childbirth, promotes milk ejecting. Hormones of anterior pg synthesis size peptide hormones (tropic hormones) Thyrotropin-releasing hormone (trh) stimulates release of tsh and prolactin.
