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Sensory nerve
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A sensory nerve, or afferent nerve, is a that contains exclusively afferent nerve fibers. Nerves containing also motor fibers are called . Afferent nerve fibers in a sensory nerve carry toward the central nervous system (CNS) from different sensory receptors of in the peripheral nervous system (PNS).

A carries information from the CNS to the PNS.

Afferent nerve fibers link the throughout the body, in to the relevant processing circuits in the central nervous system.

(2025). 9780878936953, Sinauer Associates, Inc..

Afferent nerve fibers are often paired with efferent nerve fibers from the (that travel from the CNS to the PNS), in . Stimuli cause in the receptors and alter the potentials, which is known as sensory transduction.

(2025). 9780205239399, Pearson Education Limited.


Spinal cord entry
Afferent nerve fibers leave the sensory neuron from the dorsal root ganglia of the spinal cord, and motor commands carried by the efferent fibers leave the cord at the ventral roots. The dorsal and some of the ventral fibers join as or mixed nerves.


Nerve damage
Damage to the sensory nerve causes a wide range of symptoms because of the number of functions performed by the nerve. Traumatic injuries and other damages to the sensory nerves may lead to peripheral neuropathy, with problems such as reduced position sense causing poorer coordination and balance, in addition to reduced sensitivity to temperature change and pain, leading to further problems.

The ability to feel pain or changes in temperature can be affected by damage to the fibers in the sensory nerve. This can cause a failure to notice injuries such as a cut or that a wound is becoming infected. There may also be a lack of detection of or other serious conditions. The lack of detection of pain and other sensations is a particularly large problem for those with , which contributes to the rate of lower among this population. Overall, the poor sensation and detection may lead to changes in skin, hair, joint, and bone damage over the years for many people.


See also


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