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A&P LAB > brain and cranial nerves (L9) > Flashcards

brain and cranial nerves (L9) Flashcards

1
Q

general function types of fiber? cranial nerve Ihow old is this brain?

A

four week embryo (lateral view)

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2
Q

how old is this brain?

A

five week embryo (lateral view)

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3
Q

what is the outermost meninges?

A

dura mater

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4
Q

what is the middle layer meninges?

A

arachnoid mater

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5
Q

what is the innermost meninges?

A

pia mater

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6
Q

what are the bumps and ridges on the cerebral cortex?

A

gyri
(plural-gyrus)

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7
Q

what is the worm-like structure that connects the cerebellum?

A

vermis

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8
Q

“sulcus”

A

divides lobes

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9
Q

what makes up the corpora quadrigemina?

A

mesencephalon (midbrain) includes:
superior colliculi
inferior colliculi

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10
Q

singular of colliculi?

A

colliculus

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11
Q

what is the bumps closer to the spinal cord? the ones after those bumps?

A

medulla oblongata (closer to spinal cord)
pons

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12
Q

what are the ventral parts of the brain stem? what is dorsal to that?

A

medulla oblongata
pons

cerebellum

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13
Q

what produces CSF?

A

choroid plexus

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14
Q

what does the third ventricle surround?

A

thalumus

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15
Q

what does the aqueduct of the midbrain drain into?

A

fourth ventricle
-indent at bottom on cerebellum

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16
Q

what does the epithalamus connect?

A

pineal body and thalamus

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17
Q

what is the white matter of the cerebellum called?

A

arbor vitae

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18
Q

what is the lobe in the cerebellum behind the fourth ventricle that has to do with equilibrium and balance?

A

flocculonodular lobe

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19
Q

cranial nerve I

A

olfactory

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20
Q

cranial nerve II

A

optic

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21
Q

cranial nerve III

A

oculomotor

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22
Q

cranial nerve IV

A

trochlear

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23
Q

cranial nerve V

A

trigeminal

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24
Q

cranial nerve VI

A

abducens

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25
Q

cranial nerve VII

A

facial

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26
Q

cranial nerve VIII

A

vestibulocochlear

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27
Q

cranial nerve IX

A

glossopharyngeal

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28
Q

cranial nerve X

A

vagus

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29
Q

cranial nerve XI

A

spinal accessory

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30
Q

cranial nerve XII

A

hypoglossal

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31
Q

what nerve enters and exits in the forebrain; cerebral hemispheres?

A

1

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32
Q

what nerve enters and exits in the forebrain; diencephalon?

33
Q

what nerve enters and exits in the midbrain?

34
Q

what nerve enters and exits in the brainstem;pons?

35
Q

what nerve enters and exits in the brainstem; junction between pons and medulla?

36
Q

what nerve enters and exits in the brainstem; medulla?

37
Q

what nerve enters and exits in the superior spinal cord?

38
Q

SPECIAL SENSE function type of fiber

39
Q

MOTOR function type of fiber

A

3, 4, 6, 11, 12

40
Q

MIXED (motor root and sensory root) function type of fiber

41
Q

MIXED (primary root and sensory root) function type of fiber

42
Q

MIXED function type of fiber

57
Q
A
  1. Lateral Ventricles
  2. Interventricular formina
  3. Third ventricle
  4. Fourth ventricle
  5. Aqueduct of midbrain
58
Q
A
  1. Olfactory bulbs
  2. Olfactory ducts
  3. Optic Chaism
  4. Pituitary glands
  5. Corpora Quadrigemina
    6.Pons
  6. Medulla
60
Q
A

Midsagittal section of cerebellum
Top: Arbor Vitae
Bottom: Folia(4th ventricle deep)

62
Q
A

Coronal Section of Human Cerebrum
A. White Matter
B. Corpus Colosum
C.Third Ventricle
D. Pons
E. Lateral Ventricle
F. Caudate Nucleus
G. Septum Pellucidum
H.Putamen
I. Cerebellum

63
Q

What cranial nerves that originate from the midbrain

A

Oculomotor nerve( CN III)
Trochlear Nerve(CN IV)

64
Q

What cranial nerves originate from the pons

A

Trigeminal (CN V)
Adbucens (CN VI)
Facial (CN VII)

65
Q

where is the vestiulucochlear nerve(CN VII) located

A

btwn pons and medulla

66
Q

what cranial nerves orginate from the medulla

A

CN IX- Glossopharyngeal
CN X- Vagus
CN XI- Accessory
CN XII- Hypoglossal

67
Q

which cranial nerves are sensory and which are motor

A

Sensory
1, 2, 8,

Motor
3, 4, 6, 7, 11, 12

Both
5, 9, 10

68
Q

function of CN-I (olfactory)

A

smell sensory to brain

69
Q

function of CN-II (optic)

A

retina info to brain

70
Q

function of CN-III (oculomotor)

A

innervate eye muscles
-inferior oblique
-superior rectus
-inferior rectus
-medial rectus

71
Q

function of CN-IV (trochlear)

A

innervate eye muscles
-superior oblique

72
Q

function of CN-V (trigeminal)

A

face sensation

sensory
-V1: frontal area of face
-V2: maxillary area of dace
-V3: mandibular area of face

motor (supplied by V3)
-temporalis
-masseter
-lateral and medial pterygoid muscles

73
Q

function of CN-VI (abducens)

A

innervate eye muscles
-lateral rectus muscle

74
Q

function of CN-VII (facial)

A

facial expression muscles

Glands in face
-sublingual, submandibular, lacrimal/tear (NOT parotid)

taste anterior 2/3 of tongue

75
Q

function of CN-VIII (vestibulocochlear/auditory)

A

from ear to pons

76
Q

function of CN-IX (glossopharyngeal)

A

sensory
-taste
-posterior 1/3 tongue (gag)

motor
-parotid gland

77
Q

function of CN-X (vagus)

A

motor and sensory to organs (mostly digestive)

78
Q

function of CN-XI (accessory/spinal accessory)

A

sternocleidomastoid muscle (SCM)
trapezius

79
Q

function of CN-XII (hypoglossal)

A

movement of tongue

A&P LAB (9 decks)

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