A nerve impulse initiated at a muscle spindle has to travel through which of the following structures to get into the spinal column?
A)Anterior root of spinal nerve
B)Posterior root of spinal nerve
C)Tectospinal tract
D)Central canal
E)Lateral reticulospinal tract

Question

Quizplus · Accepted Answer

The posterior root of the spinal nerve contains sensory fibers which enter the spinal cord and transmit the nerve impulse generated at the muscle spindle. The anterior root of the spinal nerve contains motor fibers that exit the spinal cord to innervate the muscle fibers. The tectospinal tract, lateral reticulospinal tract, and central canal are not involved in transmitting the nerve impulse generated at the muscle spindle into the spinal cord.

A Nerve Impulse Initiated at a Muscle Spindle Has to Travel