Neurohistology

Question 1

Cerebral cortex is also known as…

Answer 1

Neicortex

Question 2

How many layers are in the cerebral cortex?

Answer 2

6

Question 3

Name layer 1 of cerebral cortex?

Answer 3

Molecular layer

Question 4

Name layer 2 of cerebral cortex?

Answer 4

External granular layer

Question 5

Name layer 3 of cerebral cortex?

Answer 5

External pyramidal layer / small pyramidal neurones

Question 6

Name layer 4 of cerebral cortex?

Answer 6

Internal granular layer/ granule neurones

Question 7

Name layer 5 of cerebral cortex?

Answer 7

Internal pyramidal layer/ large pyramidal neurones

Question 8

Name layer 6 of cerebral cortex?

Answer 8

Multi form layer

Question 9

What cells are in the outer molecular layer?

Answer 9

Basket cells, Stellate cells

Question 10

What are neuro glia?

Answer 10

Cells that support neurones

Question 11

What cells provide structural and metabolic support?

Answer 11

Astrocytes

Question 12

What neuro glia provide an immune function in the CNS?

Answer 12

Microglia

Question 13

Myelinating cells of the CNS?

Answer 13

(Neuroglia) oligodendrocytes

Question 14

Forms myelin sheath around PNS axons?

Answer 14

Schwann cells

Question 15

How is membrane potential generated?

Answer 15

Selective permeability to potassium and sodium ions

Question 16

How is the membrane potential maintained?

Answer 16

Sodium ion pumps (move 3NA out and 2K in)

Question 17

What molecule can block the atpase of ion pumps?

Answer 17

Oubain

Question 18

What is the Nernst equation?

Answer 18

E=(RT/zf) LOGe ([ION]out/[ION]in)

Question 19

What does R T F Z stand for in the Nernst equation?

Answer 19

R= gas constant
T=temperature (Kelvin)
Z=valency of ion
F=faraday constant

Question 20

What is Goldman constant field equation?

Answer 20

Check internet/notes