Скачать или смотреть Smooth Muscle Anatomy, Contraction, & Relaxation.

This lecture starts by discussing some of the major locations where smooth muscle is found in the human body. It then explains the anatomy of smooth muscle and the different potential ways it can be stimulated to contract. Next it explains how the sympathetic nervous system causes smooth muscle specifically within systemic blood vessels to contract using the IP3 G-protein pathway to activate myosin light chain kinase. It then discusses Caldesmon and Calponin. It finishes by explaining how smooth muscle relaxes and the difference between vasoconstriction and vasodilation.

0:00 Locations of Smooth Muscle in the Body
2:43 Anatomy of Smooth Muscle
9:33 The Different Ways Smooth Muscle can Be Stimulated to Contract
13:14 Sympathetic Stimulated Smooth Muscle Contractions
14:52 Smooth Muscle Contraction - IP3 Pathway
17:40 Smooth Muscle Contraction - Myosin Light Chain Kinase
23:29 Caldesmon & Calponin
25:50 Smooth Muscle Relaxation
29:53 Vasoconstriction and Vasodilation