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Question 1

Main type of CNS glia in gray matter?

Answer 1

astrocytes

Question 2

Main type of CNS glia in white matter?

Answer 2

oligodendrocytes

Question 3

Does the CNS spinal cord include dorsal and ventral roots?

Answer 3

yes

Question 4

6 major regions of the CNS

Answer 4

1. spinal cord
2. medulla
3. pons and cerebellum
4. midbrain
5. thalamus and hypothalamus
6. cerebral cortex and basal ganglia

Question 5

clusters of gray matter =?

Answer 5

nuclei

Question 6

layers of gray matter =?

Answer 6

laminae

Question 7

gray matter loosely interspersed in white matter =?

Answer 7

reticular formations

Question 8

embryonic medulla =?

Answer 8

myelencephalon

Question 9

embryonic cerebellum=?

Answer 9

metencephalon

Question 10

embryonic midbrain=?

Answer 10

mesencephalon

Question 11

embryonic thalamus and hypothalamus=?

Answer 11

diencephalon

Question 12

embryonic cerebral cortex and basal ganglia=?

Answer 12

telencephalon

Question 13

Optic nerve and retina are outgrowths of what embryonic structure?

Answer 13

diencephalon

Question 14

The pons and medulla are aligned with the spinal cord or the brain?

Answer 14

spinal cord

Question 15

Are pons anterior or dorsal to medulla?

Answer 15

they are described anterior but anatomically dorsal/superior

Question 16

Is the white matter on the inside or outside in the medulla, pons and midbrain?

Answer 16

outside

Question 17

Does brain functioning images demonstrate grey matter or white matter?

Answer 17

Gray matter

Question 18

Gray matter nuclei represent what?

Answer 18

distinct functional units within a particular system

Question 19

Where is neural laminae most prevalent?

Answer 19

cerebral and cerebellar cortices

Question 20

What is an individual bundle of white matter connecting different CNS regions?

Answer 20

tract

Question 21

What is an anatomically distinct and rounded bundle of white matter often called?

Answer 21

fasciculus or funiculus

Question 22

What is a crescent shaped bundle of white matter called?

Answer 22

lemniscus

Question 23

A white matter tract that runs between two sides is called?

Answer 23

commissure

Question 24

What is the fundamental operational unit in the CNS

Answer 24

systems– dedicated to processing particular types of information

Question 25

What is the advantage of systems?

Answer 25

speed and high level processing effeciency

Question 26

What is the disadvantage of systems?

Answer 26

once damaged, function is lost

Question 27

are connections unidirectional between neuron clusters?

Answer 27

No- reciprocal

Question 28

True or False- systems have just the right number of neurons to do the job necessary?

Answer 28

False- more than necessary

Question 29

examples of locations with crude lamina?

Answer 29

superior colliculus and pons