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Anatomy 205 > Chapter 15 Study guide > Flashcards

Chapter 15 Study guide Flashcards

1
Q
A
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2
Q

Rostral

A

more anterior brain structures

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3
Q

caudal

A

more posterior brain structures

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4
Q

gray matter of brain

A

superficial to white matter

cerebral cortex

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5
Q

white matter of brain

A

deep to gray matter

composed of tracts myelinated nerve fibers

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6
Q

brainstem

A

diencephalon (thalamus)

mesencephalon (midbrain)

metencephalon (pons)

myelencephalon (medulla oblongata)

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7
Q

meninges of brain

A

dura mater

arachnoid mater

pia mater

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8
Q

dura mater

A

periosteal layer (superficial)

meningeal layer (deep)

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9
Q

ventricles of brain

A

2 lateral

interventricular foramen

third ventricle

cerebral aquaduct

fourth ventricle

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10
Q

choriod plexuses

A

lateral

third and fourth ventricles

produce CSF

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11
Q

CSF function

A

buoyancy

physical protection

and chemical stability for CNS

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12
Q

CSF Flow through the brain

A

secreted by Choroid Plexus

through intraventricular foramina

choroid plexus in third ventricle adds more CSF

down through cerebral aquaduct

choroid plexus in fourth ventricle adds more CSF

out 2 lateral and one median aperature

fills subarachnoid space covering external surface of brain and spinal cord

arachnoid villi reabsord in venous blood of dural venous sinuses

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13
Q

CSF Flow

1

A

Secreted by choroid plexus in each lateral ventricle

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14
Q

CSF Flow

2

A

flows through intraventricular foramina into third ventricle

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15
Q

CSF Flow

3

A

Chrooid plexus in third ventricle adds more CSF

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16
Q

CSF Flow

4

A

CSF flows down cerebral aquaduct to fourth ventricle

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17
Q

CSF Flow

5

A

Choroid plexus in fourth ventricle adds more CSF

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18
Q

CSF Flow

6

A

CSF flows out 2 lateral and one median aperature

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19
Q

CSF Flow

7

A

CSF fills subarachnoid space and bathes external surfaces of brain and spinal cord

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20
Q

CSF Flow

8

A

Arachnoid villi reabsorb CSF into venous blood of dural venous sinuses

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21
Q

Blood brian barrier

A

regulates substances get through to nervous tissue

22
Q

nuclei

A

gathering of cell bodies within the CNS

23
Q

tract

A

bundle of nerve fibers(axons) with similar

origin

destination

function

white matter

24
Q

Medulla oblongata

A

cardiac center

vasomotor center

respiratory center

25
Q

medulla

cardiac center

A

regulates rate and force of heartbeat

26
Q

medulla

vasomotor center

A

regulates blood pressure

dialates and constricts blood vessels

27
Q

medulla

respiratory center

A

regulates rate and depth of breathing

areas of speech

coughing

sneezing

salvatoin

swallowing

gagging

vomiting

sweating

28
Q

forebrain

diencephalon

A

Thalamus

hypothalamus

epithalaums

29
Q

hypothalamus

A

hormone secretion

autonomic effects

thermorgulation

food and water intake

sleep and circadian rhythms

emotional responses

memory

30
Q

cerebrum lobes

A

frontal

temporal

parietal

occipital

insula

31
Q

White matter tracts

A

projection tracts

commisural tracts

association tracts

32
Q

projections tracts

A

extend between higher and lower brain centers

33
Q

commissural tracts

A

cross between right and left cerebral hemispheres

34
Q

association tracts

A

connect different lobes and gyri within single hemisphere

35
Q

cranial nerves

A

olfactory

optic

occulomotor

trochlear

abducens

trigeminal

facial

auditory

glossopharyngeal

vagus

accessory

hypoglossal

36
Q

olfactory nerve I

A

olfactory bulbs below frontal lobe

Sensory

37
Q

optic nerve II

A

thalamus

midbrain

Sensory

38
Q

oculomotor nerve III

A

midbrain

Motor

39
Q

trochlear nerve IV

A

midbrain

Motor

40
Q

trigeminal nerve V

A

pons

Motor

41
Q

abducens nerve VI

A

pons

Both

sensory and motor

42
Q

facial nerve VII

A

thalamus

Motor

43
Q

Auditory nerve VIII

A

medulla oblongata

pons

Sensory

44
Q

glossopharyngeal nerve IX

A

medulla oblongata

Both

sensory and motor

45
Q

vagus nerve X

A

medulla oblongata

Both

sensory and motor

46
Q

accessory nerve XI

A

medulla oblongata

Motor

47
Q

hypopglossal nerve XII

A

medulla oblongata

Motor

48
Q

olfactory innervation

A

leads from the upper nasal cavity to olfactory bulbs

carries sensory information for smell

49
Q

optic innervation

A

leads from eyes to thalamus and midbrain

carries sensory signals for vision

50
Q

Vagus innervation

A

sensory fibers from thoracic and abdominal viscera

tongue/throat

outer ear

to medulla oblongata

motor signals back to these organs

senses: taste, hunger, fullness, stomach discomfort
motor: swallowing, speech, regulation of pulmonary, cardiovascular and gastrointestinal functions

Anatomy 205 (44 decks)

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