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Pain Control Drugs
Key Terms
Term | Definition |
---|---|
A? fibers | nerves that transmit sensations of sharp pains |
analgesic | drug used to reduce or eliminate pain |
aura | sensory cue such as bright lights, smells, or tastes that precedes a migraine |
C fibers | nerves that transmit dull, poorly localized pain |
cyclooxygenase (COX-1 and COX-2) | key enzyme in the prostaglandin metabolic pathway that is blocked by aspirin and other NSAIDs |
endogenous opioids | chemicals produced naturally within the body that decrease or eliminate pain; they closely resemble the actions of morphine |
kappa receptor | type of opioid receptor |
methadone maintenance | treatment of opioid dependence by using methadone |
migraine | severe headache preceded by auras that may include nausea and vomiting |
mu receptor | type of opioid receptor |
narcotic | natural or synthetic drug related to morphine; may be used as a broader legal term referring to hallucinogens, CNS stimulants, marijuana, and other illegal drugs |
neuropathic pain | caused by injury to nerves and typically described as burning, shooting, or numb pain |
nociceptive pain | pain produced by injury to a body tissue |
nociceptor | receptor connected with nerves that receive and transmit pain signals to the spinal cord and brain |
opiate | substance closely related to morphine extracted from the poppy plant |
opioid | substance obtained from the unripe seeds of the poppy plant; natural or synthetic morphine-like substance |
patient-controlled analgesia (PCA) | pain relief system whereby the patient self-administers the appropriate dose |
substance P | neurotransmitter within the spinal cord involved in the neural transmission of pain |
tension headache | common type of head pain caused by stress and relieved by nonnarcotic analgesics |