pain tolerance

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Related to pain tolerance: pain threshold

pain tol·er·ance

the highest intensity of painful stimulation that a tested subject is able to tolerate.

pain tol·er·ance

(pān tolĕr-ăns)
The level of pain someone is able to endure.

pain tol·er·ance

(pān tolĕr-ăns)
Highest intensity of painful stimulation that a tested subject is able to tolerate.


a feeling of distress, suffering or agony, caused by stimulation of specialized nerve endings. Its purpose is chiefly protective; it acts as a warning that tissues are being damaged and induces the sufferer to remove or withdraw from the source.
All receptors for pain stimuli are free nerve endings of groups of myelinated or unmyelinated neural fibers abundantly distributed in the superficial layers of the skin and in certain deeper tissues such as the periosteum, surfaces of the joints, arterial walls, and the falx and tentorium of the cranial cavity. The distribution of pain receptors in the gastrointestinal mucosa apparently is similar to that in the skin; thus, the mucosa is quite sensitive to irritation and other painful stimuli. Although the parenchyma of the liver and the alveoli of the lungs are almost entirely insensitive to pain, the liver as an organ and the bile ducts are extremely sensitive, as are the bronchi, ureters, parietal pleura and peritoneum.
Some pain receptors are selective in their response to stimuli, but most are sensitive to more than one of the following types of excitation: (1) mechanical stress of trauma; (2) extremes of heat and cold; and (3) chemical substances, such as histamine, potassium ions, acids, prostaglandins, bradykinin and acetylcholine.
The conscious perception of pain probably takes place in the thalamus and lower centers; interpretation of the quality of pain is probably the role of the cerebral cortex.
There are some naturally occurring internal systems in the body that are known to control pain but none of them has been completely verified. One of the best known is the gate control system in which it is thought that pain impulses are mediated in the substantia gelatinosa of the spinal cord.

abdominal pain
pain occurring in the area between the thorax and pelvis. Manifestations vary between species. Identifiable syndromes include: (1) horse—pawing, flank watching, rolling, straddling as though to urinate, lying on the back; (2) cattle—may depress back and paddle with hindfeet but mostly arched back, grunting, immobility; (3) dogs and cats—arched back, grunting, depression, reluctance to move. Sometimes there is elevation of the hindquarters, with the chest and forelegs on the ground (the so-called 'praying dog' attitude).
Beagle pain syndrome
see beagle pain syndrome.
projected pain
pathology in one area can affect the nerve supply to a distant area in which pain is experienced.
pain receptors
free nerve endings of tufts of fine points or buttons.
referred pain
pain felt in an area distant from the site of pathology but not mediated through a common innervation. There is no evidence that referred pain occurs in animals but it seems likely on anatomical grounds.
pain threshold
the lowest level at which a stimulus can be applied and cause perceptible pain.
pain tolerance
the level of stimulation at which pain becomes intolerable.
References in periodicals archive ?
Another lens through which we viewed differences in the relative impact of the three protocols in increasing pain tolerance involved a comparison of effect sizes.
Moreover, the higher the daily swearing frequency, the less was the benefit for pain tolerance when swearing, compared with when not swearing.
Bartholomew, Brewer, van Raalte, Linder, Cornelius, & Bart (1998) found little support for the validity of the original SIP in that the original SIP subscales were weakly associated with pain threshold, pain tolerance, the perception of fixed painful stimulation.
Individuals who have become habituated to pain are therefore expected to have a higher pain tolerance than others (Joiner et al.
Pressure pain threshold (PPTh) and pressure pain tolerance (PPTo) were determined on the middle joint of the middle finger of the participant's nondominant hand.
The result - women were found to have a lower pain threshold and pain tolerance
The effects of total sleep deprivation, selective sleep interruption and sleep recovery on pain tolerance thresholds in healthy subjects.
Clearly, there was tension between some participants' reliance on masculine ideals of pain tolerance and experience of the TRUS-Bx.
THE remarkable resilience and pain tolerance of jump jockeys has been
By simply anesthetizing the skin with a 30-gauge needle prior to starting an intravenous line and asking the patient to rate the pain on a scale of 0 to 10, a pain tolerance could be established.
Ample amounts of serotonin in the nerve cells help regulate everything from sleep to mood to food intake to pain tolerance, while low serotonin levels produce insomnia, depression, food cravings, increased sensitivity to pain, aggressive behavior, and poor body-temperature regulations.
Clifford Woolf, Irmgard Tegeder, Michael Costigan and collaborators at the Massachusetts General Hospital/Harvard Medical School and the National Institutes of Health have identified a "pain gene" that explains why certain individuals have higher levels of pain tolerance.