Chapter17EndoPart2Marieb

Chapter17EndoPart2Marieb - Ch 17 Endocrinology, Part 2...

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Ch 17 Endocrinology, Part 2 Adrenal Gland (p 525) Steroid hormones and their glands Other endocrine glands Compare Endocrine and Nervous systems Developed by John Gallagher, MS, DVM
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Adrenal (or Suprarenal) Gland Adrenal Medulla: modified sympathetic ganglion produces epinephrine and norepinephrine ( parallels sympathetic division of ANS) Adrenalin® = adrenaline = epinephrine Neuroendocrine gland
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Adrenal (or Suprarenal) Gland Adrenal cortex Corticosteroid production: Zona Glomerulosa— Aldosterone (a mineralocorticoid) Zona fasciculata— Glucocorticoids, esp. cortisol, AKA cortisone Zona reticularis—Androgens? DHEA?
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Stress and the Adrenal Gland Fig 17.8
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Steroid Hormones All steroid hormones have a common chemical backbone, derived from cholesterol Slight differences in branches decide the hormone’s activity Lipid soluble Estrogen, progesterone, testosterone, cortisol, aldosterone, calcitriol, vitamin D
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More Steroids Sex Steroids Female: estrogen and progesterone Male: testosterone, AKA anabolic steroids Corticosteroids From adrenal cortex Cortisol (antiinflammatory) Mineralocorticoids Aldosterone (preserves Na + ) Calcitriol (active form of Vit. D; from kidneys, absorbs Ca 2+ )
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This note was uploaded on 12/16/2011 for the course BIOLOGY 101 taught by Professor Mr.wallace during the Fall '11 term at Montgomery College.

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Chapter17EndoPart2Marieb - Ch 17 Endocrinology, Part 2...

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