Kinesiology 3347A/B Study Guide - Final Guide: Specific Performance, Hydroxylapatite, Cardiorespiratory Fitness
10 Dec 2012
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Document Summary
Fat cells distributed in clusters called fat depots (large number of adipose cells or adipocytes held together by a scaffold-like structure of collage and other structural molecules: abundant neural connections and rich network of blood vessels. Lpl regulates lipid storage in adipocytes by transport to the capillary endothelium and hydrolysation of fatty acids from circulating triglycerides, allowing for fa uptake by adipocyte: synthesized by adipocyte and regulated by hormones. Leptin peptide released by adipocyte, regulates food intake, energy expenditure, glucose and lipid metabolism, puberty, reproductive functions, angiogenesis, and other processes. Fat cells also secrete igf-1 and pai-1 (high levels (cid:1) increase blood clotting) Angiotensinogen may be involved in adipogenesis. Asp stimulates triglyceride synthesis in adipose tissue, results from enzymatic modification of c3a which is secreted by adipocytes in the adipsin-asp pathway. Tnf-a may be involved in a feedback loop limiting growth of adipocytes. Multipotent mesenchymal cells (cid:1) adipoblasts (cid:1) fate commitment (cid:1) preadipocytes (cid:1) very small adipocytes (cid:1) mature adipocytes.
