HSCI 003, Endocrine System

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Author:
tgherasim
ID:
237134
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HSCI 003, Endocrine System
Updated:
2013-09-26 01:07:41
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Chapter 18 endocrine system
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The endocrine system of medical terminology
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  1. What are the 8 glands of the Endocrine System?
    • Thyroid
    • Parathyroid (4 glands)
    • Adrenal
    • Pancreas
    • Pituitary
    • Ovaries
    • Testes
    • Pineal
  2. Thyroid Gland
    • Location: On either side of the trachea, below the Thyroid Cartilage.
    • Hormones: T3 (triiodothyronine), T4 (thyroxine), Calcitonin
    • Actions: Increases metabolism, decreases blood calcium
  3. Parathyroid Glands
    • Location: Four, located on the dorsal of the Thyroid Gland.
    • Hormone: PTH (Parathyroid Hormone)
    • Action: Increases blood calcium
  4. Adrenal Glands
    • Location: Two, on top of each kidney. The adrenal cortex and adrenal medulla.
    • Adrenal Cortex (Corticosteroids): Cortisol, Aldosterone, Androgen/Estrogen.
    • Actions: Increases blood glucose, increases sodium reabsorption; regulates blood pressure, sexual characteristics
    • Adrenal Medulla (catecholamine hormones): Epinephrine, nonepinephrine
    • Actions: Sympathomimetic
  5. Pancreas
    • Location: Behind the stomach
    • Hormones: Islet cells, Insulin, Glucagon
    • Actions: Lowers blood sugar, raises blood sugar
  6. Pituitary Gland
    • Location: Two parts, pea-sized gland located at the base of the brain, Hypothalmus on top.
    • Anterior Lobe (Adenohypophysis): Via capillaries, secretes hormones.
    • Hormones: GH, STH, TSH, ACTH, FSH, LH, PRL
    • Posterior Lobe (Neurohypophysis): Stores and releases hormones.
    • Hormones: ADH, OT
  7. Ovaries
    • Location: Abdominal region of female.
    • Hormones: Estrogen, Progesterone
    • Actions: Development of sex characteristics, prepares/maintains uterus.
  8. Testes
    • Hormones: Testosterone
    • Actions: Promotes development of sperm and sex characteristics
  9. Pineal Gland
    • Location: Central portion of the brain.
    • Hormone: Melatonin
    • Actions: Supports the body's "biological clock."

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