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sensation and pain
test 1
20
Anatomy
Undergraduate 4
09/02/2014

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Term
stimulus
Definition
conscious or unconscious awareness of stimuli (internal or external)
Term
transduction
Definition
conversion; receptor traduces chemical energy.***
Term
impulse generation and conduction
Definition
potential reaches threshold-one or more nerve impulses are generated.
Term
integration
Definition
specific region of the cns interprets sensation.
Term
four components of sensation
Definition
stimulus, transduction, impulse generation and conduction, and integration.
Term
selectivity
Definition
sensory receptors respond to only one kind of stimulus.
Term
selectivity
Definition
sensory receptors respond to only one kind of stimulus.
Term
superficial somatic pain
Definition
stimulation of receptors in skin
Term
deep somatic pain
Definition
stimulation of receptors in muscles, joints, tendons, and fascia.
Term
visceral pain
Definition
stimulation of receptors in the visceral organs.
Term
referred pain
Definition
pain felt in a surface area far away from the stimulated organ> the area to which the pain is referred is severed by the same segment of the spinal cord
Term
dermatone
Definition
area of skin that supplies sensory input to one pair of spinal nerves or cranial nerve to face.
Term
phantom pain
Definition
pain often experienced by amputees
Term
acute pain
Definition
occurs very rapidly and not felt in deep tissues of the body.
Term
chronic pain
Definition
occurs a few seconds after stimuli; gradually increases in intensity (burning or throbbing)
Term
what are the somatic senses (general)
Definition
touch, pressure, vibration, warmth, cold, pain, detection of body position and movement (proprioception)
Term
what are the special senses
Definition
smell, taste, vision, hearing, equilibrium.
Term
what is sensory adaptation
Definition
continuous stimulation that will often cause receptors to undergo an adjustment. (foul odors)
Term
pain sensations
Definition
physiology gone wrong - useful information about harmful tissue damaging stimuli and protects us from greater damage.
Term
nocioceptors
Definition
pain receptors stimulated by excessive mechanical, electrical, thermal, or chemical energy (stimulated when tissue is damaged.
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