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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
medulla cardiac center
regulates rate and force of heartbeat
26
medulla vasomotor center
regulates blood pressure dialates and constricts blood vessels
27
medulla respiratory center
regulates rate and depth of breathing areas of speech coughing sneezing salvatoin swallowing gagging vomiting sweating
28
forebrain diencephalon
Thalamus hypothalamus epithalaums
29
hypothalamus
hormone secretion autonomic effects thermorgulation food and water intake sleep and circadian rhythms emotional responses memory
30
cerebrum lobes
frontal temporal parietal occipital insula
31
White matter tracts
projection tracts commisural tracts association tracts
32
projections tracts
extend between higher and lower brain centers
33
commissural tracts
cross between right and left cerebral hemispheres
34
association tracts
connect different lobes and gyri within single hemisphere
35
cranial nerves
olfactory optic occulomotor trochlear abducens trigeminal facial auditory glossopharyngeal vagus accessory hypoglossal
36
olfactory nerve I
olfactory bulbs below frontal lobe Sensory
37
optic nerve II
thalamus midbrain Sensory
38
oculomotor nerve III
midbrain Motor
39
trochlear nerve IV
midbrain Motor
40
trigeminal nerve V
pons Motor
41
abducens nerve VI
pons Both sensory and motor
42
facial nerve VII
thalamus Motor
43
Auditory nerve VIII
medulla oblongata pons Sensory
44
glossopharyngeal nerve IX
medulla oblongata Both sensory and motor
45
vagus nerve X
medulla oblongata Both sensory and motor
46
accessory nerve XI
medulla oblongata Motor
47
hypopglossal nerve XII
medulla oblongata Motor
48
olfactory innervation
leads from the upper nasal cavity to olfactory bulbs carries sensory information for smell
49
optic innervation
leads from eyes to thalamus and midbrain carries sensory signals for vision
50
Vagus innervation
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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