All Bookmarks < SKELETAL MUSCLE . CONCEPT OVERVIEW PHYSIOLOGY INTERACTIVE

All Bookmarks < SKELETAL MUSCLE . CONCEPT OVERVIEW PHYSIOLOGY INTERACTIVE SUBMIT INTRODUCTION PHYSIOLOGY INTERACTIVE Labels 1. Excitation of muscle cell - 2. Excitation-contraction coupling PHASE 7: 3. Crossbridge cycling Summary Complete the following steps. Action potential travels along sarcolemma, down wall of T-tubule Action potential arrives at synaptic Sequence the events of excitation, la knob Calcium binds to troponin Crossbridge formation; power tittt Ba stroke causes contration excitation-contraction coupling, and crossbridge cycling Calcium enters synaptic knob and Tropomyosin moves to expose binds synaptic vesicles myosin binding sites Calcium released from SR to sarcoplasm Exocytosis of ACh, which binds ACh receptors Sodium enters muscle cell, resulting in end-plate potential SHOW HINTS OUTLINE RESET MY NOTES ) TUTORIAL V GO TO PHASE 8 PHASES

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