Chapter 8: The CNS

Question 1

Ventricles

Answer 1

Cavities of the brain
Filled with CSF

Question 2

Central Canal

Answer 2

Cavity of the spinal cord
Filled with CSF

Question 3

What are the 5 lobes of the brain

Answer 3

Parietal
Occipital
Temporal
Frontal
Insula

Question 4

Grey matter

Answer 4

Neuron cell bodies and dendrites
Found in cortex and deeper in nuclei
Unmylinated

Question 5

White matter

Answer 5

Axon tracts
Underlie cortex and surround nuclei
Mylinated

Question 6

Neurogenesis

Answer 6

Formation of new neurons from neural stem cells

Question 7

Where does neurogenesis occur?

Answer 7

Subventricular Zone
Subgranular Zone

Question 8

What do new neurons in the Subventricular Zone do?

Answer 8

Migrate to striatum to regulate motor control and cognitive function

Question 9

What do new neurons in the Subgranular Zone do?

Answer 9

Function within hippocampus to aid in new memories and learning

Question 10

The CNS receives input from __________ neurons and directs the activity of _________ neurons.

Answer 10

Sensory
Motor

Question 11

The CNS is capable of learning and memory, which means what?

Answer 11

Behavior is modified by experience

Question 12

Answer 12

Neural Crest
Neural Groove

Question 13

Answer 13

Neural Crest
Neural Canal
Neural Tube

Question 14

Answer 14

Prosencephalon
(forebrain)

Question 15

Answer 15

Mesencephalon
(midbrain)

Question 16

Answer 16

Rhombencephalon
(hindbrain)

Question 17

A

Answer 17

Telencephalon

Question 18

B

Answer 18

Diencephalon

Question 19

C

Answer 19

Mesencephalon

Question 20

D

Answer 20

Metencephalon

Question 21

E

Answer 21

Mylencephalon

Question 22

A

Answer 22

Cerebral Hemisphere

Question 23

B

Answer 23

Thalamus

Question 24

C

Answer 24

Hypothalamus

Question 25

D

Answer 25

Midbrain

Question 26

E

Answer 26

Pons

Question 27

F

Answer 27

Cerebellum

Question 28

G

Answer 28

Medulla Oblongata

Question 29

H

Answer 29

Spinal Cord

Question 30

How does the CNS form?

Answer 30

1) Groove appears in ectoderm on dorsal midline of embryo
2) Groove deepens, fuses to form neural tube
3) 3 distinct swellings form on anterior end of neural tube
4) Areas form 5 regions
5) those 5 regions become the brain

Question 31

The neural crest becomes which adult structure?

Answer 31

Parasympathetic Nervous System (PNS)

Question 32

The neural tube becomes which adult structure?

Answer 32

Central Nervous System (CNS)

Question 33

Neural stem cells develop into what?

Answer 33

Neurons and Neuroglia