calcium homeostasis and hormonal regulation In this regard, the principal role of vitamin d is to regulate calcium  which are  regulated by 1,25-dihydroxyvitamin d3, the hormonal form of.
{"Image DocumentName": "Parathyroid Hormone and Calcitonin: Control of Blood Calcium", "Image ImageDescription": "Two antagonistic hormones, parathyroid hormone (PTH) and calcitonin. Play the major role in calcium (Ca2+) homeostasis in mammals. Calcitonin. Thyroid gland. releases. calcitonin. Stimulates. Ca2+ deposition. in bones. Reduces. Ca2+ uptake. in kidneys. STIMULUS: Rising blood. Ca2+ level. Blood Ca2+ level declines. to set point. Homeostasis: Blood Ca2+ level. (about 10 mg/100 mL) level rises. Falling blood. Ca2+ release. from bones. Parathyroid. gland. Increases. in intestines. Active. vitamin D. Stimulates Ca2+ uptake in kidneys. PTH. Figure", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}