Parathyroid Glands

Parathyroid Glands - Parathyroid Glands: paired glands on...

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Parathyroid Glands: paired glands on posterior aspect of thyroid gland - Parathyroid hormone (Parathormone or PTH): raises blood calcium levels by absorption of calcium by cells of intestine o PTH activates the inactive form of vitamin D in the kidneys; vitamin D enhances absorption of calcium by intestine Adrenal Glands (Suprarenal Glands): pyramid-shaped glands above kidneys - Adrenal Cortex: releases corticosteroid hormones o Mineralocorticoids: released primarily by cells of zona glomerulosa; regulate salt concentrations in extracellular fluids Aldosterone : primary mineralocorticoid: enhances sodium reabsorption from kidney tubules Sodium ion concentration in body fluids also regulated by renninangiotensin o Glucocorticoids: During times of stress (injury/blood loss), glucocorticoids stimulate
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Parathyroid Glands - Parathyroid Glands: paired glands on...

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