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  2. Nociceptor - Wikipedia

    en.wikipedia.org/wiki/Nociceptor

    In mammals, nociceptors are found in any area of the body that can sense noxious stimuli. External nociceptors are found in tissue such as the skin (cutaneous nociceptors), the corneas, and the mucosa. Internal nociceptors are found in a variety of organs, such as the muscles, the joints, the bladder, the

  3. Group C nerve fiber - Wikipedia

    en.wikipedia.org/wiki/Group_C_nerve_fiber

    Microneurography is a technique using metal electrodes to observe neural traffic of both myelinated and unmyelinated axons in efferent and afferent neurons of the skin and muscle. [16] This technique is particularly important in research involving C fibers. [16] Single action potentials from unmyelinated axons can be observed. [16]

  4. Nociception - Wikipedia

    en.wikipedia.org/wiki/Nociception

    Some nociceptors are unspecialized free nerve endings that have their cell bodies outside the spinal column in the dorsal-root ganglia. [3] Others are specialised structures in the skin such as nociceptive schwann cells. [4] Nociceptors are categorized according to the axons which travel from the receptors to the spinal cord or brain. After ...

  5. Group A nerve fiber - Wikipedia

    en.wikipedia.org/wiki/Group_A_nerve_fiber

    Type Aβ fibres, and type Aγ, are the type II afferent fibers from stretch receptors. [1] Type Aβ fibres from the skin are mostly dedicated to touch. However a small fraction of these fast fibres, termed "ultrafast nociceptors", also transmit pain. [6] Type Aδ fibers are the afferent fibers of nociceptors. Aδ fibers carry information from ...

  6. Sensory nervous system - Wikipedia

    en.wikipedia.org/wiki/Sensory_nervous_system

    Nociceptors respond to potentially damaging stimuli by sending signals to the spinal cord and brain. This process, called nociception, usually causes the perception of pain. [16] They are found in internal organs, as well as on the surface of the body. Nociceptors detect different kinds of damaging stimuli or actual damage.

  7. Axon reflex - Wikipedia

    en.wikipedia.org/wiki/Axon_reflex

    Finally, as this impulse reaches other sweat glands, it causes an indirect axon-reflex sweat response. Sudomotor axon reflexes can be peripherally amplified in the transmission of the action potential magnitude by acetylcholine. [10] Acetylcholine also activates sudomotor fibers and primary afferent nociceptors, triggering axon reflexes in both.

  8. Sensory neuron - Wikipedia

    en.wikipedia.org/wiki/Sensory_neuron

    Nociceptors respond to potentially damaging stimuli by sending signals to the spinal cord and brain. This process, called nociception , usually causes the perception of pain . [ 23 ] [ 24 ] They are found in internal organs as well as on the surface of the body to "detect and protect". [ 24 ]

  9. Afferent nerve fiber - Wikipedia

    en.wikipedia.org/wiki/Afferent_nerve_fiber

    Nervous system organization - the motor and sensory systems. Afferent neurons are pseudounipolar neurons that have a single process leaving the cell body dividing into two branches: the long one towards the sensory organ, and the short one toward the central nervous system (e.g. spinal cord).