GENERAL HISTOLOGY

NERVOUS SYSTEM SPECIAL SENSE

SPINALCORD

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What do the Ventral Roots of spinal nerves contain?
A
Motor Neurons
B
Sensory Neurons
C
Interneurons
D
None of the above
Explanation: 

Detailed explanation-1: -Ventral root fibers are the axons of motor and visceral efferent fibers and emerge from poorly defined ventral lateral sulcus as ventral rootlets. The ventral rootlets from discrete spinal cord section unite and form the ventral root, which contain motor nerve axons from motor and visceral motor neurons.

Detailed explanation-2: -The ventral root of the spinal nerve contains the motor fibers of anterior motor neurons in the ventral horn, which pass to the skeletal muscles.

Detailed explanation-3: -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-4: -nerves. … root is sensory and the ventral root motor; the first cervical nerve may lack the dorsal root. Oval swellings, the spinal ganglia, characterize the dorsal roots.

Detailed explanation-5: -The spinal nerve contains motor and sensory nerve fibers to and from all parts of the body. Each spinal cord segment innervates a dermatome (see below and Figure 3.5).

There is 1 question to complete.