Complete the following paragraph. Skeletal muscles are composed of many individu

Question

Complete the following paragraph. Skeletal muscles are composed of many individual cells, or ___. Each muscle fiber is innervated by a ____. The motor neuron and all the myofibers it innervates is referred to as a _____. Every time a motor neuron sends a nerve impulse to a skeletal muscle fiber, the muscle fiber will ___. The number of motor units activated determines how much ____ is generated by the muscle. The greater the number of motor units activated, the _____. Therefore, lifting a heavy object would require _____ motor units than lifting a light object would require.

Explanation / Answer

1. Muscle fibers , motor neuron

2. Motor unit , be stimulated to contact

3. Sensory neuron, greater force, more.

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