Although primary afferent fibers
give off most of their collaterals to the segment of the spinal cord that they enter, they also spread in the rostrocaudal direction.
It acts as the relay nuclei of the visceral primary afferent fibers
, which receive afferent information from the peripheral nerves and the spinal cord or medulla oblongata.
Percutaneous denervation of the efferent sympathetic and sensory afferent fibers
of the renal nerves is a promising and safe therapeutic option but prospective randomized controlled trials are necessary to confirm that renal denervation will become vital in the treatment of resistant hypertension.
Functional analysis of group III afferent fibers
of mammalian muscles.
More specifically, the sympathetic nervous system could potentially serve as a bridge between injured afferent fibers
and sympathetic nerve fibers, (22) allowing abnormal afferent impulse to travel to efferent fibers and ultimately leading to continuous pain with involuntary movements.
Fifteen-minute cooling at 6 [+ or -] 1[degrees]C may have no effect on the function of proprioception but using lower temperatures or longer periods may indicate the other findings because of further affecting conduction velocity of afferent fibers
running from receptors to CNS, and further activation of pain receptors.
simultaneously deliver nerve stimulus back to the surface of the inner ear, and to the acoustic nuclei of the brain stem--the initial sound sensory region of the brain.
Sprouting of primary afferent fibers
after spinal cord transection in the rat.
A prolonged somatic irritant, such as low back pain, that acts on afferent fibers
from the gastrointestinal tract might inhibit sensations of visceral pain and lead to bowel motility disorders.
The nerves are injured in irritable nociceptor pain, but some primary afferent fibers
are still intact.
Just a few nerves, called afferent fibers
, extend from the central nervous system to the stomach, Powley agrees.