CSB325 Lecture 6 Review Notes

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Department
Cell and Systems Biology
Course
CSB325H1
Professor
David Lovejoy
Semester
Fall

Description
CSB325 Lecture 6 – Calcium Regulation Calcium - Can exist as a highly soluble ion or an insoluble mineral - Can possess both signalling and structural functions o Stabilize biological membranes o Calcium-mediated nerve impulse transmission o Muscle contraction o Cytoskeletal function o Cellular and vesicle transport o Secondary messenger systems in cells o Formation of bones and eggshells - Utilized early in cellular evolution as a signalling molecule 1) Low blood calcium 2) Parathyroid glands release parathyroid hormone (PTH) into the blood 3) ↑ vitamin D synthesis in the kidneys 4) ↑ calcium reabsorption in the kidneys 5) ↑ calcium resorption (break down) in the bones 6)
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