The Mechanism of Muscle Contraction: Sarcomeres, Action Potential, and the Neuromuscular Junction

We've learned about the types of muscle, including skeletal muscle, and we know then when these muscles contract, we are able to move our bodies around. But how exactly does this happen on the molecular level? There is an astonishing amount of chemistry happening to make this work, so let's dive into those sarcomeres and take a look at the neuromuscular junction!
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Hi, Sir and thank you for the video. During an 100m sprint, after the start, the muscle contraction rates needed are high so the slow oxidative Type I fibers cannot cope with this contraction rates. So what happens? We have violation of the muscle fiber recruitment rule which says that first the Type I are recruited, then the Type IIa and then the Type IIx?

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