Pain Lecture Flashcards
an unpleasant sensory and emotional experience associated with actual or potential tissue damage, or described in terms of such damage
Pain
What type of pain serves an important protective and reparative function?
Physiological pain
Does chronic pain serve any purpose?
NO
Most expensive neurological disorder?
Chronic pain
Noxious stimuli are converted to electrical signals in sensory nerve endings
Transduction
neural events which relay the information from the periphery to the cortex
Transmission
the nervous system can selectively inhibit the transmission of pain signals
Modulation
subjective interpretation by the cortex of the noxious stimulus.
*SENSORY and AFFECTIVE components
Perception
Pain is a _______ experience
Sensory
a property of the sensory system
highly reproducible in individuals
Pain detection threshold
Highly variable among individuals
dependent on affective components
Pain threshold
What transmits faster… C-Polymodal or A delta nociceptors
A delta
At ~43 degres C, nociceptors start to take over (instead of…..)
Thermoreceptors
an increased response to a normally painful stimulus
Hyperalgesia
ie hitting someone with a sunburn
a painful response to a normally innocuous stimulus
Allodynia
i.e. wearing a shirt with a bad sunburn
