SEHS Topic 4.1 Neuromuscular Function. Label a diagram of a motor unit. Foundation required: A motor unit is made up of a motor neuron and all of the skeletal muscle fibers innervated by that axon. What’s neuron? It’s the functional unit of the nervous system (a.k.a. a nerve cell).
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acetylcholine activates muscles, and
is a major neurotransmitter in the
autonomic nervous system.
types: ____________ ______________ ________________