University:
Western Sydney University
Course:
MEDI 2003 | Clinical Sciences 2
Academic year:

2024
Views:

393

Pages:

2
Author:

Mariam A. A.

Steroid hormone La from cholestral 2+ Vit D Ca²+ Lo fat soluble Det Animal Products Vit 3 [cholecalciferol] va 02 [ergocalciferol] Sun UV radiation (skin) Vit 3 [cholecalciferol] (skin) SI Stratum Spinosum Stratum Basale Photolysis Packaged with micelles absorption Cellular activities enterocyte keratinocytes heat chylomicrons [lipoprotiens] 7-dehydrocholesterol [cholecalciferol precursor] Pre Vit D3 lymphatics Active Vit D somestation fol soluble coured by va O Vit Pa [cholecalcifeo!] [colciprio Liver Cercalcitriol] 1,25 tinglaycholecalcife 1,25 dihydery ergo calofeo) 1 hepatocyles CER] 25-hydorylase ercalcidial calcifediol Vit 02 Va D3 PCT 25 Nydoryercaki@vel 25-hydroxycholacalakel [ercalcidial] [Calcißedial] kidney 1 Vit- O prabien cassite berzeuse D blood insolube PO3- Reabsorption Proximal Convoluted Tubule Bowman's Capsule Glomerulus Vasa Recta Distal Convoluted Tubule Loop of Henle Collecting Duct 1α-hydroxylase Synthons Parathyroid glands Ca2+ levels Ca2+ & PO4- release ↑ bone resorption Chief cells Ca2+ sensitive-R PTH Ca2+ reabsorption