Skeletal Muscle Stimulation and Anatomy

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• Skeletal Muscle Stimulation and Anatomy
• Somatic motor neuron synapse and function
• Acetylcholine mechanisms of action and breakdown
• Neurotransmitter receptor mechanisms
• Skeletal muscle structure from the sarcomere
  molecular components to the whole muscle.

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Anatomy of the Neuromuscular Junction
Somatic motor neuron Synapse Motor
endplate of muscle fiber membrane
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A somatic motor neuron branches to multiple
muscle fibers. One neuron its target muscle
fibers a motor unit

1. Enlarged axon terminal bouton
2. Somatic motor neuron axon
3. Muscle fiber (cell)

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Skeletal Muscle Fiber (single cell)
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Myofilaments
Muscle Fibers
Myofibrils
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Sarcomere structure
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Scanning EM
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