Endocrine System, Hormone Action
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Yeaaaaaaaaaaaaaaaaaaah, riiiiiiiiiiiiiiiiiiiiiiiiiiiii
iiiiiiight! -
If bones release Ca and Ph, and the Kidneys conserve Ca and release Ph, then how is the Ph level in the blood maintained?
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phenomonal
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Very monotone
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nice vid about PTH,
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thank you indeed...
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Keep it up, very educational
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Great Vid, very educational
dchelick 3 years ago 4
umm ... i still don't get it.. and i need to learn about it for tomorrow's class T_T
tanya070695 2 years ago 3