Question

question
all of the following are true of the spinal cord and associated structures, except:
answer
the entire spinal cord is divided into 31 segments.
the spinal nerves associated with the spinal cord are classified as mixed nerves.
after age 4, the spinal cord does not grow.
the dorsal roots associated with the spinal segments contain the axons of motor neurons.
i dont know yet

Explanation:

• The spinal cord is divided into 31 segments (8 cervical, 12 thoracic, 5 lumbar, 5 sacral, and 1 coccygeal).
• Spinal nerves are mixed nerves (contain both sensory and motor fibers).
• After age 4, the spinal cord stops growing in length.
• Dorsal roots contain axons of sensory neurons, while ventral roots contain axons of motor neurons.

Answer:

the dorsal roots associated with the spinal segments contain the axons of motor neurons.