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procedures > CNS system > Flashcards

CNS system Flashcards

1
Q

the central nervous system is divided into

A

brain and spinal cord

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2
Q

CNS tissue is composed of what 2 things

A

gray matter (outer portion of cortex) and white matter (inner portion)

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3
Q

brain is divided into 3 parts. what are they?

A

cerebrum, cerebellum, and brainstem

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4
Q

_____ is the largest part of the brain

A

cerebrum

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5
Q

also known as forebrain and the surface is covered in sulci and grooves

A

cerebrum

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6
Q

stem like portion that joins cerebrum to pons and cerebellum

A

midbrain

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7
Q

divides the cerebrum into right and left hemispheres

A

longitudinal sulcus

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8
Q

large band of nerve fibers between the right and left hemispheres

A

corpus callosum

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9
Q

makes up the largest part of the midbrain, along with pons and medulla oblongata

A

cerebellum

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10
Q

separated from cerebrum by a long transverse ___

A

cleft

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11
Q

upper part of hindbrain; commissure between cerebrum, cerebellum, and medulla

A

pons

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12
Q

consists of midbrain, pons, and medulla oblongata

A

brainstem

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13
Q

extends between pons and spinal cord

A

medulla oblongata

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14
Q

consists of an inner gray cellular substance and an outer white fibrous substance

A

spinal cord

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15
Q

gray substance forms ____ seen on transverse section

A
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16
Q

the spinal cord extends from the brain to the ____

A

L1-L2 space

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17
Q

pointed end of the spinal cord

A

conus medullaris

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18
Q

delicate fibrous portion that connects the terminal tip to the first coccygeal segment

A

filum terminale

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19
Q

connected to ___ pairs of spinal nerves

A

31

20
Q

the spinal cord is transmitted through _____ and _____ foramina

A

intervertebral and sacral

21
Q

_____ refers to the spinal nerves

A

cauda equina

22
Q

meninges are 3 continuous, protective membranes that enclose the _____ and ______

A
23
Q

inner sheath; highly vascular and closely adhered

A

pia mater

24
Q

delicate central sheath

A

arachnoid

25
Q

outermost meningeal layer, strong and fibrous

A

dura mater

26
Q

separated from arachnoid by ____ space

A
27
Q

these spaces do not communicate with ______

A
28
Q

dura has 4 parts. what are they?

A

falx cerebra, falx cerebelli, tentorium, dural sac

29
Q

runs through longitudinal tissues and supports tje cerebral hemispheres

A

falx cerebra

30
Q

separates the cerebellar hemispheres

A

falx cerebelli

31
Q

tent-shaped fold that separates cerebrum and cerebellum

A

tentorium

32
Q

encloses cauda equina

A

dural sac

33
Q

wide space between arachnoid and pia mater

A

subarachnoid

34
Q

the subarachnoid is _____ with ventricular system

A

continuous

35
Q

areas of subarachnoid space that are increased in width

A

subarachnoid cisterns

36
Q

widest of subarachnoid cisterns

A

cisterns magna

37
Q

there are ___ irregular, fluid-containing cavities

A

4

38
Q

tissue fluid of the brain and spinal cord that surrounds and cushions CNS

A

CSF (cerebrospinal fluid)

39
Q

one on each side of MSP in corresponding hemispheres of cerebrum

A

lateral ventricles

40
Q

connects lateral ventricles to third ventricle

A

interventricular foramen

41
Q

the interventicular foramen are also called ____

A

formen of monro

42
Q

slit like cavity somewhar quadrilateral in shape, situated in MSP just inferior to lateral ventricles

A

3rd ventricle

43
Q

connects third and 4th ventricle, also called ____

A

cerebral aqueduct, aqueduct of sylvius

44
Q

diamond shaped and located in area of hindbrain, anterior to cerebellum and posterior to pons and upper portion of medulla oblongata

A

4th ventricle

45
Q

where CSF exits ____ ventricle

A

procedures (8 decks)

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