Cerebral Cortex Carpenter Flashcards
where do you find the thickest layer of the cortex
crest of a convolution
where do you find the thinnest layer of the cortex
depth of a sulcus
what type of cells are numerous at ayer IV
stellate cells
6 layers of the Neocortex
from the pial surface
- molecular layer
- external granular
- external pyramidal
- internal granular
- internal pyramidal
- multiform layer
which layer do you find commissural fibers
layer III external pyramidal
which layer do you find thalamocortical fibers
layer IV internal granular
2 most widely distributed excitatory neurotransmitters in the CNS
Gutamate
spartate
Most important CNS inhibitory NT
GABA
Peptides identified in the cerebral cortex
cholecystokinin CCK
vasoactive intestina polypeptide VIP
neuropeptide Y NPY
Cholinergic neurons in the _________________ project directly to widespread neocortical areas.
substantia innominate
Noradrenergic fibers in the cerebral cortex originate from the ________.
locus ceruleus
Serotonergic fibers and terminals in the cortex arise form the _______ and _______ nuclei of the ________.
median and dorsal nuclei of the raphe
With the exception of _________ impulses involved in all forms of sensation reach localized areas of the cerebral cortex via thalamocortical projection systems.
olfaction
Established primary sensory Areas
- somesthetic area
- visual
- auditory
- gustatory
- postcentral gyrus an dmedial extension to the paracentral lobule Areas 3,1,2,
- striate area, lips of the calcarine sulcus Area 17
- two transverese gyri, Hescl Areas 41 and 42
- ventral part (opercular) of the postcentral gyrus Area 43
Location of Primary olfactory area
allocortex of the pyriform and peramygdaloid regions
