Cortical structure

Question 1

how many layers/laminae are in the neocortex?

Answer 1

6

Question 2

what are the histologically defined subregions referred to as?

Answer 2

cytoarchitectonic areas

Question 3

how are the 50 cytoarchitectonic areas divided?

Answer 3

by variations in the thickness, cell density, and other histological features

Question 4

which layer in the neocortex is usually rich in stellate neurons with locally ramifying axons?

Answer 4

4

Question 5

which layer(s) in the neocortex contain pyramidal neurons whose axons typically leave the cortex?

Answer 5

5 and 6

Question 6

which layer(s) contain smaller pyramidal neurons with corticocortical connections in the neocortex?

Answer 6

2 and 3

Question 7

layer 1 in the neocortex typically contains which type of neurons?

Answer 7

neuropil

Question 8

how many layers does the archicortex (hippocampus) typically have?

Answer 8

3 or 4

Question 9

how many layers does the paleocortex typically have?

Answer 9

3

Question 10

where is the paleocortex found?

Answer 10

ventral surface of the cerebral hemispheres and along the parahippocampal gyrus in the medial temporal lobe.

Question 11

which neocortical layer sends outputs to the thalamus and which layer receives inputs from the thalamus?

Answer 11

outputs- 6
inputs- 4

Question 12

how is the Nissl staining technique beneficial for histology?

Answer 12

It distinguishes between neurons and glia, and it enables histologists to study the arrangement, or cytoarchitecture, of neurons in different parts of the brain