PNB 2264 Exam 4 Test Questions with
Quality Answers 2026 Updated.
list what exteroceptors are used for - Answer pressure, pain, temperature, touch
list the two interreceptor and what type of receptors they have - Answer 1. visceral:
baroreceptors (pressure) stretch receptors and pain
2. somatic: proprioceptors
visceral organs lack ______ causing _____ - Answer proprioceptors, hard to locate organs
_____ which has fewer pain temperature touch receptors when compared to _____ - Answer
visceral, somatic
merkel cells - Answer fine touch, slow acting
meissners corpuscles - Answer light touch, low frequency vibrations, rapid acting
ruffini corpuscles - Answer stretch joint angle, slow acting
pacician corpuscles - Answer deep pressure and vibrations, rapid acting
rapid acting VS short acting - Answer rapid acting: get bored and stop responding
slow acting: keep responding and doesnt stop
lateral inhibition VS presynaptic inhibition - Answer LI: inhibits the synapses to either side
PI: descending inhibits ascending
pain afferents release ____ via _____ tract - Answer substance P, AL
Dorsal Column
type of pathway (ascending/descending)
transmits what type of stimuli
, receptor type - Answer ascending
pressure, proprioception, discriminative touch
mechanireceptors
ascending tracts are
descending tracts are - Answer sensory
motor
Anterolateral Tract
type of pathway (ascending/descending)
transmits what type of stimuli
receptor type - Answer ascending
crude touch, pain, temperature
nociceptors, thermoreceptors
stereogenesis is good for - Answer quick clinical screen of sensory function
stereogeneissi uses which pathway - Answer Dorsal Column
SI is located in the - Answer post central gyrus in the parietal lobe
small vs large sensory region - Answer small: good localization
large: bad localization
high centers of motor control hierarchy
what it does
structures involved - Answer decision making
motor area motor associated cortex
middle centers of motor control hierarchy
Quality Answers 2026 Updated.
list what exteroceptors are used for - Answer pressure, pain, temperature, touch
list the two interreceptor and what type of receptors they have - Answer 1. visceral:
baroreceptors (pressure) stretch receptors and pain
2. somatic: proprioceptors
visceral organs lack ______ causing _____ - Answer proprioceptors, hard to locate organs
_____ which has fewer pain temperature touch receptors when compared to _____ - Answer
visceral, somatic
merkel cells - Answer fine touch, slow acting
meissners corpuscles - Answer light touch, low frequency vibrations, rapid acting
ruffini corpuscles - Answer stretch joint angle, slow acting
pacician corpuscles - Answer deep pressure and vibrations, rapid acting
rapid acting VS short acting - Answer rapid acting: get bored and stop responding
slow acting: keep responding and doesnt stop
lateral inhibition VS presynaptic inhibition - Answer LI: inhibits the synapses to either side
PI: descending inhibits ascending
pain afferents release ____ via _____ tract - Answer substance P, AL
Dorsal Column
type of pathway (ascending/descending)
transmits what type of stimuli
, receptor type - Answer ascending
pressure, proprioception, discriminative touch
mechanireceptors
ascending tracts are
descending tracts are - Answer sensory
motor
Anterolateral Tract
type of pathway (ascending/descending)
transmits what type of stimuli
receptor type - Answer ascending
crude touch, pain, temperature
nociceptors, thermoreceptors
stereogenesis is good for - Answer quick clinical screen of sensory function
stereogeneissi uses which pathway - Answer Dorsal Column
SI is located in the - Answer post central gyrus in the parietal lobe
small vs large sensory region - Answer small: good localization
large: bad localization
high centers of motor control hierarchy
what it does
structures involved - Answer decision making
motor area motor associated cortex
middle centers of motor control hierarchy
