Cerebral Cortex Flashcards
(35 cards)
where is the cerbral cortex hidden?
more than 1/2 is hidden in the sulcus
how thick is the cerebral cortex?
2-4 mm
what is the structure of the laminar?
3-6 layers anatomic organization
what is the structure of columnar?
modules of cortex
what is the function of pyrmidal cell?
excite
what is the function of spiny stellate cell?
excite
what is the function of smooth stellate?
inhibit
what is the function of bipolar?
excie or inhibit
what is the structure of the cerbral cortex?
laminar organization
what type of cells make up the outer granule and pyramidal layer?
small cells and pyramidal cells
what type of cell makes up the inner granuale layer?
stellate cells
what type of cells make up inner pyramdial layer?
pyramid cells
what type of cells make up the inner most layer of cerebral cortex?
fusiform and bipolar
what is the direction of projection fibers?
leaves the cortex
what is an example of projection fiber?
corticospinal
what are association fiber?
joins one part of the cortex to another within the same region
what is a short fiber?
one gyrus to another gyrus within the same lobe
what is a long fiber?
travels from one lobe to another lob
ex. superior longitudinal faciculus
goes to frontal lobe to temporal lobe
what are commissural fibers?
go from one hemisphere to another
what is an example of commissural fiber?
corpus callosum
anterior commisure
posterior commisure
habenular commisure
what is a commissural fiber?
afferent
what are other examples of afferent fibers?
thalamocortical
neuraxial
what are examples of effernt fibers?
commissural
association
projection
what are somatic sensory cortex?
1,2, and 3
precentral gyrus