GENERAL HISTOLOGY

NERVOUS SYSTEM SPECIAL SENSE

SPINALCORD

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Damage to the ventral root of a spinal nerve results in
A
loss of motor control.
B
loss of parasympathetic function
C
loss of sensory input.
D
both A and B
Explanation: 

Detailed explanation-1: -If the ventral root of the spinal cord is cut, it will stop transmitting impulses from the CNS to the effector organs. The person will suffer from partial or complete paralysis.

Detailed explanation-2: -The Ventral Root of the spinal nerve contains outgoing, efferent (meaning to “bear away from") fibers that carry information destined to control motor or glandular function. The cell bodies of these motor neurons are located in the ventral horns of the spinal cord’s central grey region.

Detailed explanation-3: -These roots leave the spine on both sides through spaces (neural foramina) between each vertebra. Damage to the nerves can cause pain, tingling, numbness or weakness in the area where the nerve travels. Damage to the spinal cord at any level can cause many symptoms, from paralysis to numbness.

Detailed explanation-4: -Having exited the vertebral canal, the spinal nerve divides into two branches: a larger anterior or ventral ramus, and a smaller posterior or dorsal ramus.

There is 1 question to complete.