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Department
Biological Sciences
Course
BIOC34H3
Professor
Stephen Reid
Semester
Winter

Description
Lecture 18 Study Notes Slide 2 We have 3 sources of Calcium o Bone Deposition (calcification) of Calcium into bones reduces plasma Calcium levels Resorption (break down) of bone increases plasma calcium levels o Gut Plasma absorbs calcium from the gut So the gut does not store calcium o Kidneys Kidneys could filter calcium from the bloodiltration) Or plasma could reabsorb calcium from the kidneys(reabsorption) Regulation of Calcium in the body is controlled by hormones o Parathyroid hormone and Calcitrol hormone They both raise Calcium plasma levels o Calcitonin Reduces Calcium plasma levels Hypocalcaemia: low blood Calcium Hypercalcaemia: high blood calcium Slide 3 - 6 Calcitonin o Reduces calcium plasma levels o Produced by the thyroid gland www.notesolution.com
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