Cortex Flashcards
(20 cards)
The neurons in the cortex are _____
unmyelinated, and myelinated in white matter (myelin gives it the white color)
Two types of cells in cortex.
Pyramidal and granular cells
T/F. There are more pyramidal cells than granular.
False.
Brodmann’s area 4
Central sulcus, primary motor
Primary somatosensory Brodmann’s area
3,1,2
Brodmann’s area 17
Primary visual cortex
Bronca’s area in Brodmann’s area
44 and 45
Brodmann’s area 22
Werincke’s area
Commissural fibers are found in what level?
3- send info across hemispheres
What do association fibers do?
Send info to adjacent gyri or different lobes within the same hemisphere. they do NOT cross to other hemisphere
Level 4 has _____ cells and _____ info to/from thalamus
granular, receive, from
Level 5 has ____ cells and ____ info to/from brainstem
pyramidal, sends, to
Corticofugal means
efferent, carrying away from cortex
Corticopetal means
afferent, going to cortex
Commissural fibers can pass through
corpus callosum, anterior, and posterior commisure
Fibers btw. thalamus and corpus striatum
internal capsule
Function of frontal lobe
Primary motor(4), eye movement, Broca speech, emotions
Function of parietal lobe
Somatosensory (3,1,2), pain/heat
Function of temporal lobe
Primary auditory, olfactory, memory, Werincke’s speech (22)
Function of occipital lobe
Primary visual (17)
