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Where are the spinal ganglion situated?
They are situated on the dorsal root of each spinal nerve. (:
The dorsal root of a spinal nerve contain what?
axons of sensory neurons
What is the medical term meaning surgical resection of the dorsal root of a spinal nerve to relieve pain?
The medical term for surgical resection of the dorsal root of a spinal nerve to relieve pain is rhizotomy.
Where do sensory nerve fibers enter the spinal cord?
The dorsal column or medial lemniscus.
Damage to this fiber type would lead to a loss of sensory function?
ventral root of a spinal nerve
The anterior root and the posterior root fuse to form?
Each spinal nerve attaches to spinal cord by a ventral (anterior) root and a dorsal (posterior) root.All spinal nerves are mixed nerves (both motor and sensory).
What is loss If the anterior root of a spinal nerve is severed?
Loss of motor function would occur if the anterior root of a spinal nerve is severed, as it contains the motor neurons that carry signals from the central nervous system to muscles. Sensory input would still be intact since sensory information travels through the posterior root of the spinal nerve.
Difference between dorsal ramus and dorsal root?
The roots are two split bases of spinal nerves that connect to the spinal cord. The rami are branches of the spinal nerve that form a complex system throughout the body with the two primary ones being the dorsal (posterior) ramus and the anterior ramus. A diagram would look like an x with the two roots coming together from the spinal cord to go through the intervertebral forming a spinal nerve then splitting again immediately after the intervertebral foramen forming the rami of the spinal nerve
Is ventral root a loss of motor function?
Yes, the ventral root of a spinal nerve is the efferent motor root, consists of axons of motor neurons. It joins the dorsal root to form a mixed spinal nerve, which consists of afferent sensory neurons (from the dorsal root) and efferent motor neurons (from the ventral root). Therefore severing the ventral root will result in a loss of motor function for the myotome supplied by that spinal nerve.
Would there be a loss of sensory or motor function when someone damages the dorsal root of a spinal nerve?
Yes this can happen when any nerve is damaged but this is a greater danger if its an actual Spinal Nerve.
What order neuron conduct sensory impulses from the brain stem and spinal cord to the thalamus?
from spinal nerve to posterior (dorsal) root
What are the 31 pairs of spinal nerve?
The 31 pairs of spinal nerves are: 8 cervical 12 thoracic 5 lumbar 5 sacral 1 coccygeal. They are formed by the ventral and dorsal root of the nerve that comes out of the spinal cord.
