CN 1 Flashcards
CN I - _______
olfactory nerve
CN I is sensory or motor ?
purely sensory
CN I exits through ______
cribriform plate
______ are found in the olfactory membrane
olfactory receptor nerve cells
______ arise from peripheral processes
short cilia or olfactory hairs
short cilia project into the ______
mucus membrane
it is a fine central process
olfactory nerve fiber
describe structure of olfactory nerve fiber
unmyelinated and covered by schwann cells
what forms the olfactory bulb
cribriform plate of ethmoid bone
what cells are found in the olfactory bulb
mitral cells, tufted cells and granular cells
the olfactory bulb receives axons from ______ through the ______
contralateral olfactory bulb through olfactory tract
the olfactory tract runs from ______
olfactory bulb beneath inferior frontal lobe
the olfactory tract receives axons of ______
mitral and tufted cells of bulb and centrifugal fibers from opposite bulb
the olfactory tract divides into _____
medial and lateral olfactory striae
olfactory tract divides near ______
anterior perforated substance
the lateral striae carry _____
axons to olfactory area of cerebral cortex
the medial striae carry _____
fibers that cross in anterior commissure to pass contralateral olfactory bulb
primary olfactory complex
periamygdaloid and prepiriform areas
secondary olfactory complex
entorhinal area of parahippocampal gyrus - area 28
does the CN I synapse directly w thalamus
NO
function and division of CN 1
SVA - smell
