Sound is ACTUALLY fixed on this one, omg!! Sorry for the technical issues.
Overview Neuron action potential to muscle action potential (animation) 0:14
Quick review of muscle structures 1:07
Details of a muscle cell 1:40
Neuromuscular junction 3:51
Breakdown of acetylcholine 10:45
Sarcomeres and thick and thin filaments 11:51
Muscle contraction and sarcomere shortening 17:54
Role of calcium and regulatory proteins in muscle contraction 20:01
ATP and the crossbridge cycle 20:42
2 reasons why ATP is required for muscle contraction 25:56
Motor units and concentric, isometric and eccentric contractions 27:20
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