Endocrine System

Endocrine System - Endocrine System - a ductless system o...

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Endocrine System - a ductless system o contrast to the exocrine system - secretes hormones into blood Pituitary Gland (pg 507) - suspended from the hypothalamus by infundibulum - anterior vs posterior pituitary o Posterior Pituitary (hypothesis) Neurons whose cell bodies are in the hypothalamus (where the hormones are produced) Extend axons into the posterior pituitary where the hormones are released into blood ADH (anti-diuretic hormone) Oxytosin o Results in initiation of labor baby time o Release of milk from the breast when the baby is nursing o Anterior Pituitary Control involves what is called a portal system This means that a 2 nd bed or system of capillaries Axons release FACTORS each factor has a specific job Factor then leaves the blood through the capillaries in the anterior pituitary which causes the cells in the anterior pituitary to release a specific hormone TSH (thyroid stimulating hormone) Stimulates the thyroid ACTH (adrenal corticotrophic hormone)
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This note was uploaded on 04/17/2008 for the course BIO 205 taught by Professor Tigchelaar during the Fall '07 term at Calvin.

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Endocrine System - Endocrine System - a ductless system o...

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