Generally,the number of spinal nerves is directly related to the number of __________ of a vertebrate.
A)appendages
B)motor nerves
C)synapses
D)sensory organs
E)segments in the trunk and tail

Question

Quizplus · Accepted Answer

The spinal nerves emerge from the spinal cord and are named and numbered according to their location. Each spinal nerve receives sensory input from a specific region of skin called a dermatome, and sends motor commands to specific groups of muscles. The number of spinal nerves is directly related to the number of segments in the trunk and tail of a vertebrate. Therefore, the best choice is E.

Generally,the Number of Spinal Nerves Is Directly Related to the Number