GENERAL HISTOLOGY

NERVOUS SYSTEM SPECIAL SENSE

SPINALCORD

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The dorsal root ganglia mainly contain ____
A
cell bodies of sensory neurons
B
axons of motor neurons
C
cell bodies of motor neurons
D
axons of sensory neurons
Explanation: 

Detailed explanation-1: -A dorsal root ganglion (or spinal ganglion; also known as a posterior root ganglion) is a cluster of neurons (a ganglion) in a dorsal root of a spinal nerve. The cell bodies of sensory neurons known as first-order neurons are located in the dorsal root ganglia.

Detailed explanation-2: -Answer and Explanation: The dorsal root ganglion comprises sensory neuronic cell bodies. These are the neurons that are unipolar, also called pseudo-unipolar neurons. These cell bodies send off an axon or a single nerve fiber.

Detailed explanation-3: -Each dorsal root fiber is the central process of a dorsal root ganglion cell. The dorsal roots contain sensory fibers from the skin, subcutaneous and deep tissues, and viscera. Primary afferent fibers of the dorsal roots are either myelinated or unmyelinated.

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