Ch7and8CaHomeostasis.txt

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Author:
AP101e2014
ID:
264197
Filename:
Ch7and8CaHomeostasis.txt
Updated:
2014-02-26 23:58:09
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Description:
Ch7 Calcium Homeostasis
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  1. Parathyroid hormone stimulates osteoclasts to break down bone tissue, releasing calcium salts from the extracellular matrix into the blood.
    If Level of blood Ca++ too low
  2. Inhibits osteoclast activity, and calcitonin from the thyroid gland stimulates osteoblasts to form bone tissue, storing excess calcium in the extracellular matrix.
    If Level of blood Ca++ too high
  3. If blood calcium level is too high the _________ gland releases __________. (control center)
    Thyroid , Calcitonin
  4. If the blood calcium level is too low the _________glands releases ________ _______.(control center)
    Parathyroid , Parathyroid hormone
  5. After the thyroid releases calcitonin (as a response to a high blood Ca+ level) the _________ deposit _______ in the bones. (Effectors)
    Osteoblasts , Calcium
  6. After the parathyroid glands release parathyroid hormone (as a response to a low blood Ca+ level) the ________ break down bone to release _________.
    (Effectors)
  7. Bone-forming cells.
    Osteoblasts
  8. Large, multinucleated cells that break down the calcified matrix.
    Osteoclasts
  9. Mature bone cell. Isolated in lacunae.
    Osteocytes
  10. Endocrine gland embedded in the posterior part of the thyroid gland.
    Parathyroid Gland
  11. Hormone secreted by the parathyroid gland to increase blood Ca+ levels.
    Parathyroid Hormone
  12. Thyroid hormone used to lower blood Ca+ levels.
    Calcitonin
  13. Endorcrine gland that secretes calcitonin to decrease blood Ca+ levels.
    Thyroid Gland

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