which goes to the sensory neurons and travel through afferent fibers, then through the spinal cord and finally to the brain. 2) The motor division. Motor impulses travel through efferent fibers. A motor neuron and all the muscle fibers connected to it. 3) Muscles contracting. Glutes, hamstrings, and quadriceps 4) Muscle, fascicle, muscle fiber, myofibril, myofilament. -The smallest contractile unit of muscle; the proteins slide past each other when the muscles relax and contract. 5) It binds to…
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