HISTOLOGY OF THE CEREBRAL CORTEX Flashcards
What are the layers of the cerebral cortex?
1.Molecular layer
2.External Granular layer
3.External Pyramidal layer
4.Internal Granular layer
5.internal pyramidal layer
6.Multiform layer
Describe the the 1st layer?
1.outer molecular layer
2.Very acellular
3.Fibers are arranged parallel to the surface
What type of the cells make up 3rd layer of the cerebral cortex?
Small to medium to large pyramidal cells.
Describe the the pyramidal cells of the 3rd layer of the cerebral cortex?
1.Cells have an oval-round nuclei with a prominent nucleolus.
2 their axons extends from the base of the triangle to white matter
3.Dendrites extend from point of the triangle
Describe the 2nd layers of gray matter ?
1.It can’t really be distinguished
2.It contains a few small pyramidal cells and many small granule cells.
What are the function of the granules cells?
1.They are either interneurons or sensory neurons
Describe the cells of the 5th layer?
It contains large pyramidal cells known as Giant Betz cells
What are Giant Betz Cells?
These are large pyramidal cells that are located in the 5th layer of the Cerebral cortex.
Describe the 4th layer of the cerebral cortex?
1.It can’t really be distinguished
2.Has a few pyramidal and stellate cells
Another name of the multiform layer?
Polymorphic layer
What kind of cells are found in the the 6th layer of the cerebral cortex?
Cells of many shapes such spindle shaped cells/fusiform