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anatomy and physiology > chapter 13 pt 2 > Flashcards

chapter 13 pt 2 Flashcards

1
Q

spaces in brain are called

A

ventricles

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2
Q

ventricles are

A

cavities within the brain

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3
Q

ventricles are lined with

A

ependymal cells

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4
Q

ventricles contain

A

cerebrospinal fluid

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5
Q

ventricles connect with each other and with spinal cords ____

A

central canal

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6
Q

ependymal regular compoisiton of

A

Cerebrospinal fluid

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7
Q

how many ventricles are within the brain

A

4 main ventricles in brain

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8
Q

how many lateral ventricles are there

A

2 lateral ventricles

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9
Q

the 2 lateral ventricles are seperated by medial partition called

A

seprum pellucidum

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10
Q

the 2 lateral centricles are large cavities in the

A

cerebrum

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11
Q

the third ventricle is a narrow space in the middle of the

A

diencephalon

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12
Q

the third ventricle is connected to lateral ventricles by the

A

interventricular foramen

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13
Q

the fourth centricle is _______ shaped

A

sickle

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14
Q

4th ventricle is located between

A

pons and cerebrum

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15
Q

the fourth ventricle is connected to the third ventricle by the

A

cerebral aqueduct

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16
Q

fourth ventricle open to subarachnoid space ____ and ___

A

medially and laterally

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17
Q

the fourth ventricle narrows before merging with the

A

central canal of spinal cord

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18
Q

CSF flows through brain structure through ventricles to be a

A

nutrutive substance forbrain tissue

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19
Q

CSF is clear and

A

colorless

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20
Q

CSF circulates in _____ and _______

A

ventricles and subarachnoid space

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21
Q

functions of CSF

A

buoyancy, protection, and envionmental stability

22
Q

CSF allows for buoyancy by

A

reducing brain weight by 95%

23
Q

CSF allows for protection by

A

providing a liquid cushion

24
Q

CSF allows for envionmental stability by

A

transporting nutrients/wast and protecting against fluctuations

25
Q

CSF produced by

A

choroid plexus

26
Q

choroid plexus is in each

A

ventricle

27
Q

ependymal cells and blood capillaries regulate

A

CSF from choroid plexus

28
Q

Blood plasma is filtered through ______ and modified by
______

A

capillary ependymal cells

29
Q

Compared to plasma, CSF has more____ and _____; less ____, ____, ____

A

sodium and chlorin; potassium, carbon, glucose

30
Q

ependymal cell secretions and interstitial fluid from subarachnoid space help make up

A

cerebrospinal fluid

31
Q

CSF is continually _____ and _____

A

formed and reobsorbed

32
Q

Excess CSF flows into _______ and drains into ____

A

rachnoid villi ; dural venous sinuses

33
Q

An ______ is a collection of these villi

A

arachnoid granulation

34
Q

functions of blood brain barrier

A

Regulates which substances enter brain’s interstitial fluid
Helps prevent neuron exposure to harmful substances such as drugs
BBB composed of specialized capillaries
* Endothelial cells are connected by many tight junctions
* Walls have a thick basement membrane
* Wrapped by perivascular feet of astrocytes
BBB reduced in certain locations for functional reasons
* Choroid plexus needs to produce CSF
* Hypothalamus and pineal gland need to secrete hormones
23

35
Q

what are some drugs that can pass blood brain barrier

A

alcohol

36
Q

BBB composed of specialized

A

capillaries

37
Q

Endothelial cells of BBB are connected by many

A

tight junctions

38
Q

Walls of BBB cappilaries have a _____ membrane

BBB reduced in certain locations for functional reasons

A

thick basement

39
Q

capilarries of BBB are wrapped by

A

perivascular feet of astrocytes

40
Q

BBB reduced in certain locations for functional reasons like

A

Choroid plexus needs to produce CSF
* Hypothalamus and pineal gland need to secrete hormones

41
Q

BBB astrocytes connect neurons to blood supply by

A

using perivascular feet to attach to capillaries to make junctions

42
Q

cerebrum is the origin of

A

all complex intellectual functions

43
Q

cerebrum has how many hemispheres

A

2

44
Q

cerebrum is the center of

A

intelligence and reasoning
though, memory and judgement
voluntary control of skeletal muscle
conscious perception of senses

45
Q

left and right hemisheres of cerebrum are called

A

cerebral hemispheres

46
Q

in between cerbral hemispheres is the

A

longitudinal fissure

47
Q

at a few locations white matter______ connect the hemispheres

A

tracts

48
Q

the largest tract that provides connection between hemispheres is called

A

corpus callosum

49
Q

Each hemisphere interacts with ____ side of body

A

opposite

50
Q

what hemisphere is speech normally located

A

left

51
Q

Some higher-order functions exhibit

A

cerebral lateralization

52
Q

cerebral lateralization

A

primarily controlled by one side of the brain

anatomy and physiology (17 decks)

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