Chapter 13 Part 1

Question 1

Identify gyrus

Answer 1

Folds on the outer surface of the brain

Question 2

3- Differentiate between commissures, association fibers, projection fibers.

Answer 2

Commisures - extend between hemispheres

Projection - Link cerebral cortex to inferior brain regions and spinal cord

Association - Connect different regions of cerebral cortex within same hemisphere

Question 3

4- Compare the distribution of gray matter and white matter in the cerebrum and spinal cord.

Answer 3

Cerebrum: white matter deep to gray matter, clusters of gray matter within white matter

Spinal cord: Grey matter in the spinal cord is located deep to the white matter.

Question 4

5- What are the three meninges of the CNS?

From deep to superficial

Answer 4

pia mater
arachnoid mater
dura mater

Question 5

6- Describe the locations of the three meninges in relation to the brain.

Answer 5

Pia mater: Innermost of cranial meninges

Arachnoid mater: Lies external to pia mater

Dura mater: Lies external to arachnoid mater

Question 6

7- Name the layers of the dura mater and the space between them when it exists.

Answer 6

Meningeal layer

Periostial layer

Epidural space

Question 7

Where is the subdural space

Answer 7

space between arachnoid and dura mater

Question 8

1- What are the four major regions of the brain?

Answer 8

diencephalon
brainstem
cerebellum
cerebrum

Question 9

Identify sulcus

Answer 9

Shallow depression on surface of brain

Question 10

Identify longitudinal fissure

Answer 10

Deeper groove

Splits left and right hemispheres

Question 11

Identify transverse fissure

Answer 11

Separates cerebellum from left and right hemispheres

Question 12

Identify cerebral hemispheres

Answer 12

Left cerebral hemispheres

Right cerebral hemisphere

Question 13

Identify cerebral cortex

Answer 13

•superficial region of gray matter, termed cerebral cortex

Surface of cerebrum

Question 14

Identify tract

Answer 14

Bundles of axons

Question 15

Identify arachnoid villi

Answer 15

Finger like extensions of the arachnoid mater

Question 16

Function of Choroid plexus

Answer 16

Produces CSF in the ventricles

Question 17

What is the function of the epidural space?

Answer 17

Becomes real space if blood or fluid accumulates

Question 18

Subarachnoid space contains?

Answer 18

CSF

Question 19

Where epidural space

Answer 19

potential space between dura mater and bones of the skull

Question 20

What are cranial dural septa

Answer 20

Double layers of dura mater

Extend as flat partitions into the cranial cavity

Question 21

2 function of cranial dural septa

Answer 21

Separate specific parts of the brain

Stabilize and support the brain

Question 22

Name 4 ventricles of brain

Answer 22

Two lateral ventricles

Third ventricle

Fourth ventricle

Question 23

Locate 4 ventricles

Answer 23

Two lateral = cerebrum

Third= diencephalon

Fourth= between pons and cerebellum

Question 24

What are the third and fourth ventricles function

Answer 24

Third= communicate with each lateral ventricle

Fourth= communicates with third ventricle

Question 25

What is CSF? Where is it?

Answer 25

Clear, colorless watery solution. | Circulates in ventricles and subarachnoid space

Question 26

CSF 3 main function

Answer 26

Buoyancy Protection Environmental stability

Question 27

Where is CSF first produced

Answer 27

Choroid plexus

Question 28

What are 5 lobes of cerebrum

Answer 28

rontal, parietal, temporal, occipital, insula

Question 29

Frontal lobe 3 main function

Answer 29

primarily concerned with: –voluntary motor functions –concentration and verbal communication –decision making, planning, and personality

Question 30

Parietal lobe function

Answer 30

primarily concerned with: | –general sensory functions

Question 31

Temporal lobe function

Answer 31

nvolved with hearing and smell

Question 32

Occipital lobe function

Answer 32

processing visual information

Question 33

Insula 2 main function

Answer 33

involved in: –memory –interpretation of taste

Question 34

What are the 3 functional areas of cerebrum

Answer 34

motor areas sensory areas association areas

Question 35

Motor areas function

Answer 35

Control voluntary motor function

Question 36

Sensory areas function

Answer 36

receives and processes sensory information

Question 37

Association areas function

Answer 37

Process and interpret data or coordinate motor response

Question 38

What motor area located in precentral gyrus

Answer 38

Primary motor cortex located in precentral gyrus of frontal lobe

Question 39

What part of sensory area housed in postcentral gyrus

Answer 39

Primary somatosensory cortex