Steps of Muscle Contraction
Updated: 2/3/2020
Steps of Muscle Contraction
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  • Hi guys, welcome to the In Time Hospitals. Today through the time I'm going to show you the steps of muscle contraction.
  • In Time Hospital
  • 1. Stimulation
  • ACh is released into the neuromuscula junction by the axon terminal.
  • Let's start herein the Hospital and the we move in time.
  • ACh diffuses across theneuromuscular junctionand binds to receptorson the sarcolemma.
  • I'm sorry, I'm trying to explain something
  • Death Sentence
  • Wait a minute what is that rabbit doing here!!
  • Nooooo
  • Catch that Rabbit
  • Oh Lord!
  • Depolarization occurs,and the action potentialis generated.
  • The action potential,carried deep into the cell, causes the SR torelease calcium ions.
  • The calcium ionconcentration at themyofilaments increases,the myofilaments slide
  • As calcium is activelyreabsorbed into the SR,its concentrationdecreases at themyofilaments.
  • And final, The muscle cellrelaxes and lengthens.
  • Wait what?!
  • Someone give me that rabbit
  • Uhh a rabbit, and I thought that I wouldn't eat before my audience
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