Question

a&p flix quiz: excitation - contraction coupling
6 parts | 0.83 of 1 point
what is the relationship between the number of motor neurons recruited and the number of skeletal muscle fibers innervated?
a motor neuron typically innervates only one skeletal muscle fiber.
a skeletal muscle fiber is innervated by multiple motor neurons.
typically, hundreds of skeletal muscle fibers are innervated by a single motor neuron.
motor neurons always innervate thousands of skeletal muscle fibers.

Explanation:

In the human body, a single motor neuron typically forms synapses with hundreds of skeletal - muscle fibers, a structure called a motor unit. This allows for coordinated muscle contraction.

Answer:

C. Typically, hundreds of skeletal muscle fibers are innervated by a single motor neuron.