Lecture 4 -- Growth hormone + Calcium and Phosphorous
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1
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What hormone increases blood calcium levels in the body?
Parathyroid hormone (PTH) increases blood calcium levels.
2
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What is the role of parathyroid hormone (PTH) in the intestine?
PTH increases the absorption of Ca2+ from the intestine by activating vitamin D.
3
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What effect does parathyroid hormone have on the kidneys?
PTH promotes the reabsorption of Ca2+ and the excretion of phosphate (PO43-).
4
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How does parathyroid hormone affect bones?
PTH stimulates osteoclasts to dissolve Ca(PO4)2 crystals in bone, releasing calcium (Ca2+).
5
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What is the overall effect of parathyroid hormone on blood calcium levels?
PTH causes an increase in blood calcium levels (↑ Ca2+).
Note 
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