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The stimulus for release of parathyroid hormone is: a. PRH. b. low levels of calcium ions...

The stimulus for release of parathyroid hormone is:

a. PRH.

b. low levels of calcium ions in the blood.

c. TSH.

d. nerve impulses from the hypothalamus.

e. calcitonin.

Science   Anatomy-And-Physiology   
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Answer #1

ANSWER - OPTION B- LOW LEVELS OF CALCIUM IONS IN THE BLOOD.

where there is low calcium levels in the blood, (the negative feed back controls the parathyroid homrmone secretion), when in high levels of calcium, the para thyroid hormone does not get stimulated. it causes bone dissloution causing the calcium in the bone to get into the blood stream, raising the calium levels in blood.

Calcitnonin is stimulated when there is high amount of calcium in the blood.

TSH - is stimulated to produce T4 and T3 which stimulates the metabolism of cells in the body.

PRH- stimulation of nip-ples and mammary glands cause the prolactin hormone to stimulate.

nerve impulses from the hypothalamus can stimulate the anti diuretic hormone and oxytocin from the posterior pituitary gland.

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