Intro To Cns

Question 1

Groups of cell bodies in CNS are called

Answer 1

Nuclei

Question 2

Groups of cell bodies in PNS are called

Answer 2

Ganglions

Question 3

What cells insulate the axons in the CNS

Answer 3

Oligodendrocytes

Question 4

What cells insulate the axons in the PNS

Answer 4

Schwann cells

Question 5

What are peripheral nerves made of

Answer 5

Collection of axons

Question 6

Where are grey and white matter found

Answer 6

CNS

Question 7

Purpose of grey matter

Answer 7

Process information

Question 8

Purpose of white matter

Answer 8

Send information

Question 9

How is grey/white matter arranged in the brain

Answer 9

Grey matter superficially and in more abundance as more space dedicated to processing

Question 10

How is grey/white matter arranged in the spinal cord

Answer 10

Centeal H shaped grey matter and peripheral white

Question 11

Where is grey matter found deep in the brain instead of superficially

Answer 11

Thalamus To relay informarion

and basal ganglia

Question 12

What is the ARBOR VITAE

Answer 12

Tree like white matter w/in cerebellum that send motor and sensory info to and from the cerebellum to coordinate movement and balance

Question 13

What is the corpus callosum

Answer 13

White matter tracts that bridges the 2 hemispheres of the brain and sends information between them

Question 14

What does grey matter consist of

Answer 14

Groups of cell bodies

Question 15

What does white matter consist of

Answer 15

Groups of axons

Question 16

Parts of the CNS

Answer 16

Cerebrum

Cerebellum

Brainstem

Spinal cord

Question 17

Gen func of cerebrum

Answer 17

conscious processing and movement

Question 18

Gen func of cerebellum

Answer 18

Movement patterns and coordination

Question 19

Gen func of brain stem

Answer 19

Relay system betw/ dx parts of CNS

Subconscious control of viral organs and bodily system

Question 20

Gen func of spinal cord

Answer 20

Send and receive information from the periphery

Question 21

Classification of PNS

Answer 21

Cranial nerves - receive sensory i fo from head and beck

Autonomic nervous system- unconscious regulation Of vital organs

Somatic- conscious and voluntary control

Enteric has

Question 22

Location and function of peripheral nerves

Answer 22

Function SAME
-Sensory = Afferent. Motor = Eferrent

Location DAVE
Dorsum of SC= Afferent. Ventrum of SC = Efferent

Question 23

Location of sensory nerve cell bodies

Answer 23

Dorsal root ganglion

Question 24

Location of motor nerve cell bodies

Answer 24

Within the grey matter of the spinal cord

Question 25

What is unique about some autonomic nerve plexuses e.g.

Answer 25

Travel alongside arteries to reach their target organs e.g.

• MESENTERIC
• CELIAC

Question 26

What level does the spinal cord end

Answer 26

L1-L2