营养生理学主要营养物质代谢的调控Jing,Hao (景浩)College of Food Science and Nutritional EngineeringChina Agricultural UniversityDec 15, 18, 2009
营养生理学 主要营养物质代谢的调控 Jing, Hao (景浩) College of Food Science and Nutritional Engineering China Agricultural University Dec 15, 18, 2009
EndocrineThe endocrine system is an integrated systemof small organs which involve the releaseof extracellular signalingmoleculesknown as hormonesEndocrinologyis the study of hormones, their receptors and theintracellular signalling pathways they invoke
Endocrine The endocrine system is an integrated system of small organs which involve the release of extracellular signaling molecules known as hormones. Endocrinology is the study of hormones, their receptors and the intracellular signalling pathways they invoke
"Diffuse" endocrine systemScattered throughout the bodyIn addition to the classical endocrine organs, manyothercellsinthebodysecretehormones.Myocytes in the atria of the heartepithelial cells in stomach/small intestineIf hormone~all secreted chemical messengersThen all cells ~ part of the endocrine system
“Diffuse" endocrine system Scattered throughout the body In addition to the classical endocrine organs, many other cells in the body secrete hormones. Myocytes in the atria of the heart epithelial cells in stomach/small intestine If hormoneall secreted chemical messengers Then all cells ~ part of the endocrine system
· All physiologic events are influencedby the endocrine messanges·All "large" physiologic effects are mediated bymultiple hormones acting in concert:Normal growth: growth hormone, thyroidhormones, insulin-like growth factor-1,glucocorticoids and several other hormones.There are many hormones knownwhile others remain to be discovered
• All physiologic events are influenced by the endocrine messanges • All "large" physiologic effects are mediated by multiple hormones acting in concert: Normal growth: growth hormone, thyroid hormones, insulin-like growth factor-1, glucocorticoids and several other hormones • There are many hormones known while others remain to be discovered
The endocrine system is a collection of glandsthat secrete chemical messages we callhormones.These signals are passed through the blood toarrive at a target organ, which has cellspossessing the appropriate receptor.Exocrineglands(not part of the endocrine system) secreteproducts that are passed outside the body.Sweat glands, salivary glands, and digestiveglands are examples of exocrine glands
The endocrine system is a collection of glands that secrete chemical messages we call hormones. These signals are passed through the blood to arrive at a target organ, which has cells possessing the appropriate receptor. Exocrine glands (not part of the endocrine system) secrete products that are passed outside the body. Sweat glands, salivary glands, and digestive glands are examples of exocrine glands