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GA 2 > FINALS: BRAIN LEC > Flashcards

FINALS: BRAIN LEC Flashcards

0
Q

Brain is continuous with the Spinal cord through the

A

Foramen magnum

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1
Q

Part of cns that lies inside the cranial cavity

A

Brain

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2
Q

3 parts of the brain

A

Forebrain
Midbrain
Hindbrain

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3
Q

Forebrain

A

Cerebrum

Diencephalon

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4
Q

Cavities in the forebrain

A

3rd

Right and left lateral ventricle

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5
Q

Cavities in the Midbrain

A

Cerebral aqueduct

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6
Q

Hindbrain

A

Pons
Medulla oblongata
Cerebellum

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7
Q

Cavities in the hindbrain

A

4th ventricle

Central canal

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8
Q

Largest part of the brain BIG BRAIN

A

Cerebrum

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9
Q

2 cerebral hemispheres is connected by

A

Corpus callosum

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10
Q

Surface layer of each hemisphere composed of gray matter

A

Cortex

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11
Q

Large sulci or fissures divide the hemisphere into LOBES

A

Sulci

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12
Q

Cental sulcus

A

Frontal

Parietal

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13
Q

Lateral sulcus

A

Frontal
Parietal
Temporal

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14
Q

Parieto occ sulcus

A

Parietal

Occ

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15
Q

Ant to central sulcus

A

Precentral or motor gyrus

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16
Q

Control the voluntary movts on the opp side of the body

A

Precentral or motor gyrus

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17
Q

Post to central sulcus

A

Postcentral or sensory gyrus

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18
Q

Interpret sensations of pain, temp, touch, pressure

A

Postcentral gyrus

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19
Q

Lobe that is highly motor

A

Frontal

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20
Q

Lobe that is highly sensory

A

Parietal

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21
Q

Cortical regions in parietal lobe

- understanding, speech

A

Somatosensory assoc area

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22
Q

Loc in parietal and temporal lobe along w auditory assoc area and primary auditory cortex
- hear sounds plus meaning

A

Gen interpretative area or Wernickes area

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23
Q

Interpret hearing or sounds

A

Saa

Gia

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24
Q

Responsible for motor speech

Give signals to larynx to produce words

A

Brocas area

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25
Q

Posterior pole and medial aspect of the cerebral hemisphere

A

Visual area

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26
Q

In the region of the CALCARINE SULCUS receiving area for visual impressions(occ lobe)

A

Visual area

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27
Q

Cavity present within each cerebral hemisphere

A

Lateral ventricle

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28
Q

Lateral gentricle communicates with the 3rd through the

A

Interventricular foramina

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29
Q

Large mass of gray matter lies on either side of the 3rd ventricle
-relay station on the afferent sensory pathway to the cerebral cortex

A

Thalamus

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30
Q

Forms the lower part of the lateral wall and floor of the 3rd ventricle

A

Hypothalamus

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31
Q

Narrow part of the brain

Passes through the TENTORIAL NOTCH and CONNECTS forebrain to hindbrain

A

Midbrain

32
Q

2 lateral halves (cerebral peduncles) divided into:

A 
Anterior part (crus cerebri)
Post part (tegmentum)
33
Q

Pigmented band of gray matter

A

Substantia nigra

34
Q

Narrow cavity that connects 3rd and 4th ventricles

A

Cerebral aqueduct

35
Q

Post to the cerebral aqueduct

A

Tectum

36
Q

4 small surface swellings

A

2 sup and 2 inf colliculi

37
Q

Small granular struc that lies bet sup colliculi, calcifies in middle age and can be visualized in radiographs

A

Pineal body

38
Q

Situated on the ant surface of cerebellum below midbrain and above the medulla

A

Pons

39
Q

Composed of nerve fibers wc connect the 2 halves of the cerebellum

A

Pons

40
Q

pons contain - and - fibers connecting the forebrai, midbrain and spinal cord

A

Ascending and descending fibers

41
Q

Cortical region in temporal lobe: rel to ears

A

Auditory cortex

42
Q

Inf to corpus callosum

Biggest ventricle

A

Lateral ventricle

43
Q

3 horns of lateral ventricle

A

Ant
Inf
Post

44
Q

What comprises the diencephalon

A

Thalamus

Hypothalamus

45
Q

Secretes CSF

Color blue above thalamus

A

Choroid plexus

46
Q

3 neuro endocrine glands or organs

A

Hypothalamus
Pituitary gland
Pineal body

47
Q

Give signals to pituitary gland to secrete either stimulatory or inhibitory hormones

A

Hypothalamus

48
Q

Master gland

A

Pituitary gland

49
Q

Other name for pituitary gland

A

Hypophysis

50
Q

Function of thalamus

A

Relay station

51
Q

Pathway of afferent

A

Sensory pathway

52
Q

Pathway of efferent

A

Motor pathway

53
Q

Anatomical significance of hypothalamus

A

Level where we locate optic chiasma and mamillary bodies

54
Q

Point where optic nerve will cross

A

Optic chiasma

55
Q

Hypothalamus is a landmark to locate presense of

A

Optic chiasma

Mamillary bodies

56
Q

Connection bet forebrain and hindbrain

A

Midbrain

57
Q

Substantia nigra is dark because of what neurotransmitter

A

Dopamine

58
Q

Def in dopamine results to lightening of substantia nigra

A

Parkinsons dse

59
Q

Pineal body secretes what

A

Melatonin

60
Q

3 organs of hindbrain

A

Cerebellum
Pons
Medulla

61
Q

Func of pons

A

Act as relay station

62
Q

Pons highly projeted bec of

A

Presence of CN

63
Q

Conical

Connects pons above to the spinal cord below

A

Medulla

64
Q

Line separating the medulla in the middle

Present on the ant surface

A

Median fissure

65
Q

Swelling Lateral to median fissure

A

Pyramid

66
Q

Swelling posterior to the pyramids

A

Olive

67
Q

2 major swellings of medulla

A

Olive

Pyramid

68
Q

Medulla taper below, where majority of descending fibers CROSS OVER to opp side

A

Decussation of the pyramids

69
Q

Behind olives, connects medulla to cerebellum

A

Inf cerebellar peduncles

70
Q

Func of cerebellum

A

Body posture and coordinatio

71
Q

Lies within the post cranial fossa beneath the tentorium cerebelli

A

Cerebellum

72
Q

Post to pons and medulla

A

Cerebellum

73
Q

Connects the 2 cerebellar hemispheres

A

Vermis

74
Q

Cerebellum + midbrain

A

Sup cerebellar peduncle

75
Q

Cerebellum + pons

A

Middle c. P.

76
Q

Cerebellum + medulla

A

Inf c. P.

77
Q

Surface layer of the hemispheres

A

Cortex

78
Q

Foldings in cerebellum which increases surface area

A

Folia

GA 2 (21 decks)

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