MCAT Hormone1

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Anonymous
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73319
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MCAT Hormone1
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2011-03-16 17:43:57
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  1. Releasing and Inhibiting Factors
    HYPOTHALAMUS -> ANTERIOR PITUITARY: modifies activities
  2. Growth Hormone (GH)
    ANTERIOR PITUITARY: increases bone and muscle growth, increases cell turnover rate
  3. Prolactin
    ANTERIOR PITUITARY -> MAMMARY GLAND: milk production
  4. Thyroid-stimulating hormone (TSH)
    ANTERIOR PITUITARY -> THYROID: increases synthesis and release of thyroid hormone (tropic)
  5. Adrenocorticotropic hormone (ACTH)
    ANTERIOR PITUITARY -> ADRENAL GLAND: increases growth and secretory activity of adrenal cortex
  6. Luteinizing hormone
    ANTERIOR PITUITARY -> OVARY/ TESTES: ovulation or testosterone synthesis
  7. Follicle-stimulating hormone (FSH)
    ANTERIOR PITUITARY -> OVARY / TESTES: follicle development or spermatogenesis
  8. Antidiuretic hormone (ADH, vasopressin)
    POSTERIOR PITUITARY -> KIDNEY: water retention
  9. Oxytocin
    POSTERIOR PITUITARY -> BREAST & UTERUS: milk letdown and uteral contractions
  10. Thyroid hormone (TH, thyroxine)
    THYROID: in the child it is necessary for physical and mental development; in the adult, it increases metabolic rate and temperature
  11. Calcitonin
    THYROID C CELLS -> BONE, KIDNEY, SMALL INTESTINE: lowers serum [Ca2+]
  12. Parathyroid hormone (PTH)
    PARATHYROIDS -> BONE, KIDNEY, SMALL INTESTINE: raises serum [Ca2+]
  13. Thymosin
    THYMUS: is involved in T-cell development during childhood.
  14. Epinephrine
    ADRENAL MEDULLA: sympathetic stress response (rapid)
  15. Cortisol (glucocorticoid)
    ADRENAL CORTEX: results in a longer-term stress response; increased blood [glucose]; increased protein catabolism; decreased inflammation and immunity; many other
  16. Aldosterone (mineralocorticoid)
    ADRENAL MEDULLA -> KIDNEY: increased Na+ reabsorption to increase blood pressure
  17. Sex steroids
    ADRENAL CORTEX: not normally important, but an adrenal tumor can overproduce these, causing masculinization or feminization.
  18. Insulin
    BETA CELLS OF THE ISLETS OF LANGERHANS IN THE PANCREAS: decreases blood [glucose]; increases glycogen and fat storage; it is activated at high blood [glucose] and is absent or ineffective in diabetes melitus
  19. Glucagon
    ALPHA CELLS OF THE ISLETS OF LANGERHANS IN THE PANCREAS: secreted at low blood [glucose] and results in an increase in blood [glucose] and decrease in glycogen and fat storage
  20. Somatostatin (SS)
    SIGMA CELLS OF THE ISLETS OF LANGERHANS IN THE PANCREAS: inhibits many digestive processes
  21. Testosterone
    TESTES: male characteristics; spermatogenesis
  22. Estrogen
    OVARIES / PLACENTA: Female characteristics, endometrial growth
  23. Progesterone
    OVARIES / PLACENTA: leads to endometrial secretion, pregnancy
  24. Atrial natriuretic factor (ANF)
    HEART -> KIDNEY: increases urination to decrease blood pressure
  25. Erythropoeitin
    KIDNEY -> BONE MARROW: increases RBC synthesis
  26. Regulation of [Ca2+]
    Parathyroid hormone and Calcitonin
  27. Regulation of blood [glucose]
    Insulin and Glucagon
  28. Milk production and letdown
    Oxytocin and Prolactin
  29. Secreted by the Pancreas
    Glucagon (alpha) & Insulin (beta) & Somatostatin (sigma)
  30. Involved in Pregnancy Prepping
    Oxytocin, Prolactin, Progesterone, Estrogen, LH, FSH
  31. Regulation of B.P.
    Atrial natriuretic factor (ANF) & Aldosterone
  32. Hormones that increase blood [glucose]
    Glucagon (polypeptide derivative), Epinepherine (amino acid derivative), Cortisol (steroid / glucocorticoid)

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