Lecture 16

Lecture 16 - Unit #8 Unit The Endocrine System Introduction...

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Unit #8 Unit #8 The Endocrine System The Endocrine System
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Introduction Introduction The endocrine system is a system of ductless glands Secrete messenger molecules called hormones Interacts closely with the nervous system Endocrine organs are scattered throughout the body Pure endocrine organs Pituitary, pineal, thyroid, parathyroid, and adrenal glands Organs containing endocrine cells Pancreas, thymus, gonads (these have been discussed) and the hypothalamus Hypothalamus is a neuroendocrine organ Produces hormones and has nervous functions
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Fig. 17.1 Pineal gland Hypothalamus Pituitary gland Parathyroid glands (on dorsal aspect of thyroid gland) Thymus Thyroid gland Adrenal glands Pancreas Ovary (female) Testis (male)
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The Pituitary Gland The Pituitary Gland Attached to the hypothalamus by the infundibulum Two basic divisions of the pituitary gland Adenohypophysis ( anterior lobe ) has three major divisions Pars distalis , pars intermedia
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Lecture 16 - Unit #8 Unit The Endocrine System Introduction...

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