Organization of Isocortex Flashcards
Characteristic of cell layers in primary sensory areas
Dense small cells in #4
Characteristic of cell layers in primary motor
Betz cells in #5
Relay nuclei in thalamus projects to
3b-4
Intralaminar nuclei in thalamus project to
All but 4
5 traits of stellate cells
- Spiny
- Star shaped w round soma
- Found in layer 4
- Arborize in multiple directions close to soma
- Axon stay in cortex, projecting to 2-3
Betz cells are?
Large pyramidal cells
Pyramidal cell that project laterally go…
to brother region
Pyramidal cells usually project to
1 layer
4 subcortical regions that pyramidal cells project to
Basal ganglia
thalamus
brainstem
spinal cord
Corticocortical pyramidal cells are found in layers
2, 3, 5
Caliosal pyramidal cells are found in layers
3, 5
Cortistriatal pyramidal cells are found in layer
5
Cortifugal pyramidal cells are found in layer
5
Corticothalamic pyramidal cells are found in layers
5, 6
Corticofugal inclues 4 destinations
Tectum
Pons
Medulla
Spinal Cord
Intrinsic pyramidal vertical axon collaterals do what
arborize in the same area as it’s dendrites
Intrinsic pyramidal horizontal projections do what
Stay in same layer
Can travel up to 10mm
Bring the layer together in patchy connections