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HSCI 100 (38)
Chapter 10

Chapter 10 hsci 100 notes

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Simon Fraser University
Health Sciences
HSCI 100
Nienkevan Houten

Chapter 10ENDOCRINESYSTEMCompromised of glands that contain secretory cells that release their products hormones into the extracellular fluid where theyre diffused into the bloodstreamHormones chemical messenger of the bodySecretes hormones that move primarily through the bloodstream to target cellsHomeostasisThe nervous and endocrine system are important in maintaining homeostasis byThe hypothalamus bridges regulatory functions of both systemsThe nervous system is able to respond to changes in the external environmentThe information may result in rapid response from the nervous system or more prolonged and stable responses from the endocrine systemExocrinevsendocrineglandsExocrine glandsSecrete their product into DUCTS that carry these products to other organs or outside the bodyEndocrine glandsSecrete their products DIRECTLY into the blood stream WhatarehormonesHormones are chemical signals that promote communication between cells body parts and even individualsTypes of hormonesProstaglandinsLocal hormones affect neighbouring cells and this are not carried in the blood stream paracrine PheromonesChemical signals that influence the behaviour of other individualsPeptide hormonesBind to a receptor in the plasma membraneSteroid hormones
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