Term
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Definition
| Myelinated fibers that transmit impulses very rapidly |
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Term
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Definition
| Sudden and severe pain that usually decreases or diminishes after the stimulus is removed and the tissue has healed |
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Term
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Definition
| Substances that are involved in the relief of pain |
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Term
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Definition
| Chemical mediator released during inflammation that stimulates pain receptors and causes vasodilation |
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Term
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Definition
| Unmyelinated fibers that transmit pain impulses slowly |
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Term
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Definition
| Usually defined as pain lasting several months (3 to 6). The cause is often unknown, and the pain often does not respond to usual pain therapy |
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Term
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Definition
| Surgery involving the interruption of the lateral spinothalamic tract of the spinal cord |
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Term
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Definition
| Specific area of the skin innervated by a specific spinal nerve |
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Term
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Definition
| Neuropeptide that has an analgesic effect |
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Term
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Definition
| Group of nerve cell bodies located outside of the central nervous system |
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Term
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Definition
| Theory in which the opening and closing of "gates" along the signal pathways control the transmission of the pain signals |
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Term
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Definition
| Chemical released by mast cells and basophils; triggers inflammatory response by dilating capillaries and increasing membrane premeability in injured area |
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Term
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Definition
| Structure in the central part of the brain. Key role is to maintain homeostasis and control the autonomic nervous system and much of the endocrine system through the pituitary gland |
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Term
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Definition
| Neuron between the sensory and motor neurons |
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Term
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Definition
| Having a myelin sheath of lipids and protein |
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Term
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Definition
| Transmits fast impulses for acute sharp pain |
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Term
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Definition
| Type of general anesthesia where the patient can respond to commands but is unaware of the procedure and does not experience any discomfort |
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Term
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Definition
| Refers to the level of stimulation required to perceive pain |
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Term
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Definition
| Refers to the ability to withstand pain |
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Term
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Definition
| Carries slower impulses for chronic or dull pain |
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Term
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Definition
| Type of pain or sensation such as itching or tingling that occurs in some individuals after an amputation |
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Term
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Definition
| Chemical int eh body that can exert effects such as vasodilation, muscle contraction, and inflammation |
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Term
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Definition
| Pain perceived at a site distant from the actual source |
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Term
| Reticular activating system (RAS) |
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Definition
| System that informs the brain of incoming pain stimuli |
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Term
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Definition
| Site where fibers from tracts connect in the brain stem |
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Term
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Definition
| Surgical interruption of a cranial or spinal nerve root |
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Term
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Definition
| Pain that originates in the skin, bone, or muscles and is conducted by sensory fibers |
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Term
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Definition
| Area of the cerebral cortex that is "mapped out" for the sensory perception coming from the skin and deep tissue |
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Term
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Definition
| Group of nerve fibers in the spinal cord that carry the sensory impulses activated by pain and temperature |
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Term
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Definition
| Structure in the central part of the brain. Major function is to serve as a sorting and relay for incoming sensory impulses. |
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Term
| Transcutaneous electrical stimulation (TENS) |
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Definition
| Electrical stimulation of the skin that increases sensory stimulation at site, blocking pain transmission |
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Term
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Definition
| Pain that originates in organs and is conducted by sympathetic fibers |
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