HLSC 2F95 Lecture Notes - Lecture 8: Glycogen, Alpha Cell, Chromaffin Cell

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6 Dec 2013
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The endocrine system regulates body functions via the release of hormones into the vascular system. Feedbacks mechanisms play a critical role in endocrine efficacy. The endocrine system is primarily regulated via the pituitary gland. Feedback mechanism - know - from hypothalamus, there are signals sent to particularly anterior pituitary, the releases via the blood system - then sent to specific organs. Pituitary gland - made up of two basic lobes: posterior and anterior. There are cell in hypothalamus that release adh hormone and oxytocin 0 released directly from their own blood vessels. The thyroid gland fig 19-5 (know where located) Highly vascularized (all endocrine glands are highly vascularized) Within the gland, there are follicles, materials are being produced. Release of thyroglobulin regulated by (tsh) in blood. Depends on energy need, caloric supply & thermal environment. Essential for healthy growth & maturation of fetus and children. Parathyroid glands - also called chief cells - fig.

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