MUSCLE_08 - Myocyte membrane depolarizes Calcium is...

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MUSCLE Striated Somatic Voluntary Smooth Involuntary Cardiac
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Muscle Fiber (Cell)
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Motor Unit One Neuron The Myocytes innervated by the neuron The smallest addressable unit of force generation
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Motor Units Some are large (Soleus) One neuron: 200 muscle cells Some are small (Medial Rectus) One neuron: 3 muscle cells
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Contraction: Regulated by Troponin
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Myocyte Contraction Summary AP in neuron ACh released at neuron endplate ACh binds receptors in sarcolema
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Unformatted text preview: Myocyte membrane depolarizes Calcium is released from the sarcoplasmic reticulum and binds troponin Tropomysin shifts position Myosin binds to G-actin-binding sites Myosin heads rotate creating force Graded Contraction Individual MU Firing Rate Recruitment of Motor Units Amyotrophic Lateral Sclerosis EMG Maxwell Stress Strain vs. Force Polymers That Expand Power Generation...
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MUSCLE_08 - Myocyte membrane depolarizes Calcium is...

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