Muscle Contraction Made EASY: What REALLY Happens During Exercise
1 year ago
121
How do muscles actually contract? There's a lot involved in the process. And in this video, we talk about muscle contraction at the molecular level. We'll discuss sarcomeres, actin, myosin, the muscle action potential and the roles of ATP and calcium ion.
Press play and enjoy.
Video Chapters:
00:01 Intro
00:15 Biceps Curls During Weight Lifting: Overview
00:33 Skeletal Muscles
00:49 Muscle Fibers, myofibrils, sarcomeres
01:00 How Muscle Contraction Happens
01:49 How the Brain Signals the Biceps to Contract
02:13 Neuromuscular Junction
02:20 How Acetylcholine Works at the Neuromuscular Junction
03:15 How Myosin and Actin Filaments Work Together During Muscle Contraction
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