PHGY 210 Lecture Notes - Lecture 14: Sorption, Parafollicular Cell, Tetany
20 Jul 2016
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Document Summary
O parathyroid hormone pth: protein and is produced by parathyroid glands. It increases circulation levels of ca o calcitonin- protein and is produced by the parafollicular or c cells of the thyroid gland. Its absorption is increased by vit d and. Pth o from the plasma: some of the calcium will be deposited in bone (calcitonin increases ca deposition in bone) of cells of other tissues. Some will go through the kidney and into the urine (calcitonin increases this loss). When the plasma [] is below 10mg/100ml then pth will stimulate reabsorption of ca from the kidney and removal of ca from the bone (bone reabsorption). There are 4 of parathyroid glands that sit on the back of the dorsal surface of the thyroid. It is essential for life- it is need to circulate the ca []. Pth is a peptide hormone, produced as a pre pro protein.
