Cortex Flashcards
dorsal notochord (roofplate) secretes
BMP > sensory
ventral notochord (floorplate) secretes
SHH > motor
layer 1 (molecular layer)
Cajal-Retzius cells, some white matter
layer 2
external granular layer, youngest, small granular neurons, cortico-cortico fibers
layer 3
external pyramidal layer, medium pyramidal neurons, cortico-cortico fibers
layer 4
internal granular layer, stellate and granule, mostly receive sensory
layer 5
internal pyramidal layer, large pyramidal neurons, corticostriate fibers
layer 6
polymorphic layer, olderst, intralaminar synapses, cortico-thalamic fibers
corpus callosum formed by layers
2 and 3
area 4
primary motor cortex
area 6
premotor and supplementary motor cortex
areas 44 and 45
Broca’s area
areas 9, 10, 11, and 46
prefrontal cortex
area 8
frontal eye fields
areas 1, 2, 3
primary somatosensory cortex
areas 41 and 42
primary auditory cortex
area 22
Wernicke’s area
area 17
primary visual cortex (V1)
area 18
visual association cortex (V2)
arcuate fasciculus connects
inferior frontal gyrus to superior temporal gyrus (Broca’s to Wernicke’s)
projection fibers connect
cortex to subcortex
last two parts of brain to myelinate
- association cortex
2. reticular formation
