Lab 8 - Olfaction Flashcards
olfactory nerves go through the blank
cribriform plate
detection and recognition of volatile chemicals that come in contact with membranes in the nose
olfaction
memories and emotion from smell is because it goes to this part of the brain
amygdala
taste is combined with olfaction to get blank
flavor
four cells that transmit touch
meissners, merkel, pacini, ruffini
surface of skin sensory cells for touch
meissners, merkel
deep skin sensory cell for vibration
pacini
deep skin sensory cell for sustained pressure
ruffini
merkel and meissners have blank receptive fields so they are good for
small, accuracy/sensitivity
pacini and ruffini have blank receptive fields
large
these cells do not undergo adaptation
ruffini
these receptors adapt quickly to pressure
meissners, pacini
merkel cells adapt blank to pressure
slowly
the blank structure of the corpuscle gives rise to adaptation
physical
four fibers for sensory information (afferent)
a alpha, a beta, a delta, c
two fibers that sense pain
a delta, c
delta does blank pain
sharp
c fibers do blank pain
dull acheing
a alpha do blank for skeletal muscle
proprioception
a beta fibers do blank of the skin
mechanoreceptors
dorsal medial lemniscus are for blank
upper body
lateral regions of thalamus is for blank
lower body
medial regions of thalamus is for blank
upper body
lesion above medullla on the left side produces blank side deficits
right
lesion below medullla on the left side produces blank side deficits
left
lesion above the crossover point in spinal cord on right side produces blank side deficins
contralateral
sensory info from face
trigeminal
trigeminal ascends to blank which goes to blank
thalamus, primary somatosensory
three divisions of somatosensory cortex
primary, secondary, superior parietal lobule
blank and blank receive sensory input
s1, s2
superior parietal lobule is for blank
sensory integration
