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Parathyroid which:
"breaks down" bones to increase blood calcium levels
Wiki User
∙ 10y ago
Wiki User
∙ 11y agoPTH (parathyroid hormone) and calcitonin
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What is the primary thyriod hormone?
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isn't this from the January 2008 regents?Two primary agents of cellular communication are hormones and chemicals made by nerve cells.
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Calcium homeostasis is complex, but two well known hormones that play a role are:Parathyroid hormone and calcitonin.
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What happens if the epiphyseal plate of long bones in children closes too early?
If this happens, then the growth of the bones will stop lengthwise. So the height of the boy will not increase further. The breadth of the bone can still increase. You have two such plates in long bone. Both needs to be closed in order to stop the growth length wise.
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The two primary substances associated with healthy bones are both Calcium and Vitamin D.
