Muscles contraction flowchart PDF

Title Muscles contraction flowchart
Author Olivia Snyder
Course Anatomy and Physiology I
Institution University of Akron
Pages 1
File Size 31.2 KB
File Type PDF
Total Downloads 68
Total Views 139

Summary

This is a complete flow chart of muscle contractions, which was really helpful in Dr. Hines class....


Description

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Muscles contraction flowchart AP on somatic motor neuron  Release of ACh into the synaptic clef  Ach will bind to the Ach receptors which are located on the sarcolemma/motor endplate  Sodium enters the cytosol  There is an AP on the sarcolemma  AP will travel down the t-tubule  The SR releases Ca+2  Ca+2 binds to the troponin  The tropomyosin will uncover the myosin binding sites on the actin  ATP forms cross bridges between the actin and myosin  Power strokes happen (the thick filaments pulls the thin filaments in)  Cross bridges break thanks to ATP  ATP hydrolysis and activates (Cocks) the myosin head  More cross bridges will form  The thin and thick filaments slide closer together (sliding filament mechanism)...


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