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50 Cards in this Set

  • Front
  • Back
A CNS neuronthat fors an intermediate synaptic connection between other neurons.
Specialized receptors on nerves that transmit pain impulses.
A multisynaptic spinal reflex that is normally elicited by a noxious stimulus.
Withdrawal Reflex
The level of noxious stimulus required to alert the individual to possibe tissue damage.
pain threshold
second-order nuerons of the pain and temperature pathways. teaxons of these cells cross the midline of the spinal cord and ascend in the anterior lateral fasicuculus.
Tract Cells
System in the brain that controls emotion.
Limbic System
heat that is gained or lost trough the indirect transmission of energy.
Radiant Heat
A cluster of nuerons in the peripherel nervous system.
A cluster of neurons in the CNS
Nucles (Nuclei)
Pertaining to the body
through the skin
pertaining to organs of the body
A sensory receptor formed by a nerve fiber and surrounding connective tissue cells.
Encapsulated receptor
Gray matter in the center of the brain
The most superficial of the receptor organs
Merkel's disks
Detect every light touch of the skin
hair follicle receptors.
less sensitive to mechanical pressure, but are specialized to detect moving or vibrating stimuli on the skin. Rapidly adapt to constant pressures.
Meissner's corpuscles.
Large encapsulated receptor organs found in the skin and deeper tissues
Pacinian Corpuscles
pertaining to the opposite side of the body.
A segmental skin area supplied by a spinal nerve root.
On the same side of the body.
The ascending fiber system that conveys pain and temperature sensation from spinal cord to the cerebral cortex.
Anterior lateraL system
The small bundle of fibers in the dorsolateral spinal cord formed by ascending or descending primary afferent fibers that carry pain and temperature sensation.
Dorsolateral fasciculus (lissauer's tract)
The most caudal region of the brain stem. Contains many cranial nerve nuclei and is important in visceral control.
the most rostral region of the brain stem. Involved in muscle control and modulation of pain. Also processes visual and auditory information.
A nucleus in the caudal medulla that relays fine touch and proprioceptive information from the upper body to the thalmus.
Nucleus cuneatus
A nucleus in the caudal medulla that relays fine touch and proprioceptive information from lower body to the thalmus
Nucleus gracilis
the large bundle of fibers in the anterolateral spinal cord and brain stem that carry second-order pain fibers to the brain stem and thalamus. This bundle includes fibers that are often called the spinothalmic tract.
Anterior lateral fasciculus
Neurons in the spinal cord and thalamus that respond to a broad range of mechanical pressures. They respond to both touch and pain.
Wide dynamic range cells
pain that is well localized
Epicritic Pain
the crebral hemishperes and thalamic region of the brain
A massive band of ascending and descending fibers in the forebrain that connect the cerebral cortex to thalamus, brain stem, and spinal cord.
Internal capsule
The fibers from different regions of the body are systematically distributed along the surface of this gyrus forming a "map" of the body spread across the cortex
midline area of the cortex
cingulate gyrus
poorly localized pain sensation
Protopathic pain
the process of being made sensitive to a specific substance
An area in the cerebral cortex, located in the postcentral gyrus of the parietal lobe, that is important in the perception of touch and proprioception and in the localization of pain sensation.
Somatosensory cortex
This theory holds that the A-beta fibers form indirect connections with cells of the ALS in the dorsal horn.
Gate-Control Theory
Directly stimulate nociceptors
Sensitization of the nerve fibers so that other mediators can enhance nociception
Neurotransmitter released centrally to produce the pain response and peripherally producing hyperalgesia and inflammatory responses.
Substance P
Released by mast cells to directly stimulate nociceptors
A substance released by the body that reduces the perception of pain by bonding to pain receptor sites.
The ability of a modality or treatment regimen to produce the intended effects.
A device or "drug" that has no physiological effect on the body.
Receive descending fibers from the cingulate cortex and several other regions of the cerebral cortex that play a role in emotion control.
periaqueductal gray (PAG)nuclei
Outside or away from its normal position; in an abnormal position or sequence.
Swelling or other mass formation around a nerve. Normally formed by connective cells instead of neurons
Destruction, trauma, or inhibition of a nerve
Pain emanating from muscle and connective tissues that is persistent and shows no indication of being caused by arthritis or other nociceptive process.
myofascial pain syndrome or trigger point pain.