NERVOUS SYSTEM SPECIAL SENSE
SPINALCORD
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
enter through the dorsal horn.
|
|
|
have their cell bodies in the dorsal root ganglia
|
|
|
travel through a spinal nerve.
|
|
|
all of the above
|
Detailed explanation-1: -All primary sensory neurons that enter the spinal cord originate in ganglia that are located in openings in the vertebral column called the intervertebral foramina. Peripheral processes of the nerve cells in these ganglia convey sensation from various receptors, and central processes of the same cells enter…
Detailed explanation-2: -In transverse sections, the gray matter is conventionally divided into dorsal (posterior) lateral and ventral (anterior) “horns.” The neurons of the dorsal horns receive sensory information that enters the spinal cord via the dorsal roots of the spinal nerves.
Detailed explanation-3: -Sensory information is carried by sensory neurons in dorsal roots, which enter the cord in small bundles called dorsal rootlets. The cell bodies for these sensory neurons are clustered together in a structure called the dorsal root ganglion, which is found alongside the spinal cord.
Detailed explanation-4: -Information coming from the sensory neurons in the head enters the central nervous system (CNS) through cranial nerves. Information from the sensory neurons below the head enters the spinal cord and passes towards the brain through the 31 spinal nerves.