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  2. Local anesthetic - Wikipedia

    en.wikipedia.org/wiki/Local_anesthetic

    Many local anesthetics fall into two general chemical classes, amino esters (top) and amino amides (bottom). A local anesthetic (LA) is a medication that causes absence of all sensation (including pain) in a specific body part without loss of consciousness, [1] providing local anesthesia, as opposed to a general anesthetic, which eliminates all sensation in the entire body and causes ...

  3. Local anesthesia - Wikipedia

    en.wikipedia.org/wiki/Local_anesthesia

    Local anesthesia is any technique to induce the absence of sensation in a specific part of the body, [1] generally for the aim of inducing local analgesia, i.e. local insensitivity to pain, although other local senses may be affected as well. It allows patients to undergo surgical and dental procedures with

  4. Anesthesia - Wikipedia

    en.wikipedia.org/wiki/Anesthesia

    Anesthesia (American English) or anaesthesia (British English) is a state of controlled, temporary loss of sensation or awareness that is induced for medical or veterinary purposes. It may include some or all of analgesia (relief from or prevention of pain), paralysis (muscle relaxation), amnesia (loss of memory), and unconsciousness.

  5. Hypoalgesia - Wikipedia

    en.wikipedia.org/wiki/Hypoalgesia

    Hypoalgesia occurs when nociceptive (painful) stimuli are interrupted or decreased somewhere along the path between the input (nociceptors), and the places where they are processed and recognized as pain in the conscious mind. Hypoalgesic effects can be mild, such as massaging a stubbed toe to make it hurt less or taking aspirin to decrease a ...

  6. Spinal cord stimulator - Wikipedia

    en.wikipedia.org/wiki/Spinal_cord_stimulator

    Electrotherapy of pain by neurostimulation began shortly after Melzack and Wall proposed the gate control theory in 1965. This theory proposed that nerves carrying painful peripheral stimuli and nerves carrying touch and vibratory sensation both terminate in the dorsal horn (the gate) of spinal cord. [21]

  7. Nociceptor - Wikipedia

    en.wikipedia.org/wiki/Nociceptor

    ' pain receptor ') is a sensory neuron that responds to damaging or potentially damaging stimuli by sending "possible threat" signals [1] [2] [3] to the spinal cord and the brain. The brain creates the sensation of pain to direct attention to the body part, so the threat can be mitigated; this process is called nociception.

  8. Neuropathic pain - Wikipedia

    en.wikipedia.org/wiki/Neuropathic_pain

    Neuropathic pain is pain caused by a lesion or disease of the somatosensory nervous system. [2] [3] Neuropathic pain may be associated with abnormal sensations called dysesthesia or pain from normally non-painful stimuli . It may have continuous and/or episodic components. The latter resemble stabbings or electric shocks.

  9. Hyperalgesia - Wikipedia

    en.wikipedia.org/wiki/Hyperalgesia

    Hyperalgesia (/ ˌ h aɪ p ər æ l ˈ dʒ iː z i ə / or /-s i ə /; hyper from Greek ὑπέρ (huper) 'over' + -algesia from Greek ἄλγος (algos) 'pain') is an abnormally increased sensitivity to pain, which may be caused by damage to nociceptors or peripheral nerves and can cause hypersensitivity to stimulus.