Ch 13

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Ch 13
2009-11-29 20:40:38
Endocrine System

The Endocrine System
Show Answers:

  1. How many hormones circulate in your blood?
  2. What are the functions of the endocrine system?
  3. Where do hormones come from?
    From endocrine glands.
  4. What system does the endocrine system react with?
    The nervous system.
  5. What are steroid hormones?
    Lipid soluable, chemically derived from cholesterol.
  6. What are nonsteriod hormones?
    Water soluable, faster action than steriod hormones.
  7. What are the hormones made in the hypothalamus stored?
    In the posterior pituitary gland.
  8. What types of hormones are produced by the hypothalamus?
    Non steriodal hormones: Antidiuretic hormone (ADH), Oxytocin.
  9. What is the function of the ADH?
    Antidiuretic hormone conseves water in kidneys, regulates water balance in the body.
  10. What is the function of Oxytocin?
    Causes uterine contractions during labor and milk ejection through neuroendocrine reflex.
  11. What are the hormones of the anterior pituitary?
    Nonsteroidal hormones: ACTH, TSH, FSH, LH, Prolactin, Growth Hormone.
  12. What is the function of ACTH?
    Stimualates adrenal cortex.
  13. What is the function of TSH?
    Acts on thyroid gland.
  14. What is the function of FSH, LH, and Prolactin?
    Related to control of reproductive cycles and lactation.
  15. What is the function of growth hormone?
    Widespread effect on body.
  16. What are the hormones produced by the pancreas?
    Glucagon, insulin, somatostatin.
  17. What is the function of glucagon?
    Made by alpha cells, raises blood sugar.
  18. What is the function of insulin?
    Made by beta cells, lowers blood sugar.
  19. What is the function of somatostatin?
    Made by delta cells, inhibits secretion of glucagon and insulin, regulates other hormones.
  20. What are the hormones of the adrenal cortex?
    Steriodal: Glucocorticoids, mineralocorticoids.
  21. What are the hormoes of the adrenal medulla?
    Nonsteriodal: Epinephrine, norepinephrine.
  22. What are the hormones of the thyroid gland?
    T4, T3, and calcitonin