Brain, Spinal Cord and ANS

Question 1

Cerebrospinal fluid is produced by?

Answer 1

Ependymal cells of choroid plexus

Question 2

Neurons in the DRG are what shape?

Answer 2

Psuedounipolar

Question 3

The largest neurons in the ventral horn are?

Answer 3

Multipolar

Question 4

Blockage of the lateral aperture causes dilation of the?

Answer 4

Ventricles

Question 5

Autonomic preganglionic cell bodies are located in the?

Answer 5

Lateral grey horn

Question 6

Grey matter in brain

Answer 6

Broken into nuclei → usually peripheral

Question 7

White matter in brain

Answer 7

Central

Question 8

Ventricles communicate with?

Answer 8

Cenral canal and subarachnoid space

Question 9

Grey matter of spinal cord is composed of?

Answer 9

1. Nerve cell bodies
2. Glial cells
3. Unmyelinated fibers

Question 10

Neuropil is made of?

Answer 10

Glial processes and unmyelinated fibers

It’s the background

Question 11

White matter of spinal cord is made of?

Answer 11

Myelinated fbers and glia

Question 12

Funiculi contain?

Answer 12

Ascending and descending tracts

Question 13

DRG contains?

Answer 13

Afferent cell bodies (sensory)

Question 14

Pericytes

Answer 14

Located in perivascular space → form and maintain vessel basement membrane (also phagocytic)

Question 15

What forms sheath around CNS vessels?

Answer 15

Astrocyte processes

Question 16

Blood-brain barrier

Answer 16

Non-fenestrated capillaries; endothelial cells jointed by tight junctions

Surrounded by pericytes and astrocyte processes

Question 17

Blood-CSF barrier

Answer 17

Fenestrated capillaries

Ependymal cells have tight junctions

Question 18

Lateral foramina opens to?

Answer 18

Subarachnoid space

Question 19

How is CSF reabsorbed to the vascular system?

Answer 19

Arachnoid villi

Question 20

Main function of cerebllum

Answer 20

Coordinate motor activity

Question 21

3 zones of cortical grey matter in cerebellum

Answer 21

1. Molecular (most superficial)
2. Purkinje cells
3. Granular layer

Question 22

Purkinye cells

Answer 22

Large and flask-like → provide only efferent route from cortex to deeper cerebellar nuclei

Question 23

Preganglionic sympathetic ganglia nt.

Answer 23

Acetylcholine

Question 24

Postganglionc sympathetic nt.

Answer 24

Norepinephrine

Question 25

Pre- and post-ganglionic parasympathetic nt.

Answer 25

Acetylcholine

Question 26

Layers of cortical grey matter

Answer 26

1. Molecular layer
2. Small and large pyramidal
3. Polymorphical