A sensory nerve, or afferent nerve, is a nerve that contains exclusively afferent nerve fibers. Nerves containing also motor fibers are called mixed nerve. Afferent nerve fibers in a sensory nerve carry sensory system toward the central nervous system (CNS) from different sensory receptors of in the peripheral nervous system (PNS).
A motor nerve carries information from the CNS to the PNS.
Afferent nerve fibers link the throughout the body, in neural pathway to the relevant processing circuits in the central nervous system.
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.
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 heart attacks or other serious conditions. The lack of detection of pain and other sensations is a particularly large problem for those with diabetes, 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.
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