Neurohistology Flashcards
Cerebral cortex is also known as…
Neicortex
How many layers are in the cerebral cortex?
6
Name layer 1 of cerebral cortex?
Molecular layer
Name layer 2 of cerebral cortex?
External granular layer
Name layer 3 of cerebral cortex?
External pyramidal layer / small pyramidal neurones
Name layer 4 of cerebral cortex?
Internal granular layer/ granule neurones
Name layer 5 of cerebral cortex?
Internal pyramidal layer/ large pyramidal neurones
Name layer 6 of cerebral cortex?
Multi form layer
What cells are in the outer molecular layer?
Basket cells, Stellate cells
What are neuro glia?
Cells that support neurones
What cells provide structural and metabolic support?
Astrocytes
What neuro glia provide an immune function in the CNS?
Microglia
Myelinating cells of the CNS?
(Neuroglia) oligodendrocytes
Forms myelin sheath around PNS axons?
Schwann cells
How is membrane potential generated?
Selective permeability to potassium and sodium ions
How is the membrane potential maintained?
Sodium ion pumps (move 3NA out and 2K in)
What molecule can block the atpase of ion pumps?
Oubain
What is the Nernst equation?
E=(RT/zf) LOGe ([ION]out/[ION]in)
What does R T F Z stand for in the Nernst equation?
R= gas constant
T=temperature (Kelvin)
Z=valency of ion
F=faraday constant
What is Goldman constant field equation?
Check internet/notes
