Physiology 2130 Lecture Notes - Lecture 13: Thyrotropin-Releasing Hormone, Pancreatic Islets, Osmotic Concentration

• School: Western University
• Department: Physiology
• Course: Physiology 2130
• Professor: Christine Bell

Document Summary

13. 2 introduction: endocrine system consists of a series of glands that secrete different chemicals into the blood, these hormones travel throughout the body to their target site to initiate their effect. 13. 3 endocrine system function: functions include maintenance of internal environment (body temp, body fluid volume, osmolarity, etc. 13. 5: some glands in the body are hypothalamus, pituitary, other glands are the thyroid, adrenal, pancreas, and the gonads (ovaries in the female and testes in the male) 13. 12 hormones kinase: the hormone receptor complex activates tyrosine kinase on the inside surface of the membrane, tyrosine kinase then alters existing proteins that will then alter the activity of the cell. 13. 13 hormones ion channels: when the hormone attaches to its receptor, a g-protein is activated that lies within the cell membrane, this g-protein can then open adjacent ion channels. 13. 14 hormones control of secretion: secretion of most hormones is controlled by negative feedback.