022014 3 Neurohistology Flashcards Preview

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Flashcards in 022014 3 Neurohistology Deck (22):
1

Function and location of purkinje cells?

motor neuron in cerebellum
inhibit motor function of surrounding neurons by releasing GABA

2

Function and location of pyramidal cells?

motor neuron in cerebrum
excite surrounding neurons by releasing glutamate
inhibit surrounding neurons by releasing GABA

3

Function and location of alpha motor neurons (lower motor neurons)?

motor neuron in brainstem and spinal cord
innervate skeletal muscle fibers, aiding in contraction

4

Function of interneurons.

release GABA to inhibit surrounding neurons

5

This cell type is the largest glia, has euchromatic nucleus, no visible nucleolus, and secretes GFAP.

astrocyte

6

This cell type functions to scavenge for neurotransmitters, tell endothelial cells to form BBB, is involved in glial scar formation, secretes cytokines, and becomes reactive and increases GFAP following CNS trauma/alzheimer's.

astrocyte

7

What cell type is infected by HIV?

microglia

8

Grey or white matter is 80% lipid?

white

9

What cells form the brain-CSF barrier, are ciliated in order to move CSF, and originate from neural tube?

ependymal cells

10

Where are sympathetic fibers located? parasympathetic?

T1-L3
CN 3, 7, 9, 10, S2-S4

11

What are the components of the choroid plexus?

pia
ependyma
blood vessels

12

The dura is similar to what connective tissue layer of the peripheral nervous system?

epineurium

13

The arachnoid is similar to what connective tissue layer of the peripheral nervous system?

perineurium

14

The pia is similar to what connective tissue layer of the peripheral nervous system?

endoneurium

15

The middle meningeal artery is located in what space?

epidural

16

The superior sagittal sinus is located in what layer?

dura

17

Bridging veins are located in which space?

subdural

18

What space contains the CSF?

subarachnoid

19

What neurotransmitter activates sweat glands?

Ach

20

What type of neuron is found mostly in the PNS, is sensory, has a single axon that bifurcates, and has no dendrite?

pseudounipolar neuron

21

What type of neuron is usually found in the PNS, has one axon, one dendrite, and is special sensory?

bipolar neuron

22

What type of neuron is a motor neuron with one axon and 1+ dendrite(s)?

multipolar neuron