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Sectional Anatomy > Brain > Flashcards

Brain Flashcards

1
Q

complicated arrangement of folds

A

gyri

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2
Q

what are the grooves called that separate gyri

A

sulci

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3
Q

another term for sulci

A

fissures

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4
Q

another term for inter hemispheric fissure

A

longitudinal fissure

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5
Q

what is a deep groove separating the 2 cerebral hemispheres

A

longitudinal fissure

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6
Q

what divides brain into rt and lt halves

A

longitudinal fissure

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7
Q

what is located in the longitudinal fissure

A

falx cerebri and superior sagittal sinus (major vein)

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8
Q

what are veins referred to as in the brain

A

sinues

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9
Q

another term for sylvian fissure

A

lateral fisure

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10
Q

what separates the frontal and parietal lobes of brain from the temporal lobe

A

lateral fissure

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11
Q

another term for fissure of rolando

A

central fissure

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12
Q

what separates the frontal and parietal lobes of cerebrum

A

central fissure

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13
Q

what separates 2 of the major gyri on surface of brain

A

central fissure

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14
Q

what is anterior to central fissure

A

pre-central gyrus

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15
Q

what is posterior to central fissure

A

post-central gyrus

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16
Q

what are the several large divisions of the brain

A

cerebrum, cerebellum, brainstem, and diencephalon

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17
Q

largest portion of the brain

A

cerebrum

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18
Q

what divides brain into rt and lt hemispheres

A

cerebrum

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19
Q

what is the entire cerebrum composed of

A

gray and white matter

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20
Q

what is gray matter

A

neuron bodies

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21
Q

what is white matter

A

myelinated axons

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22
Q

what is the outer most portion of the cerebrum

A

cerebral cortex

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23
Q

what is composed of gray matter approximately 3-5 mm thick

A

cerebral cortex

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24
Q

what is deep to the cortex

A

white matter

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25
Q

what contains pathways to transmit information to and from cortex

A

white matter

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26
Q

what is the densest portion of white matter

A

corpus callosum

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27
Q

what is most anterior aspect of each cerebral hemisphere

A

frontal lobe

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28
Q

what is the middle division of rt and lt hemispheres

A

parietal lobe

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29
Q

what is bounded superiolry by sylvian fissure

A

occipital lobe

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30
Q

what is also referred to as island of reil

A

insula

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31
Q

what is a dense collection of nerve fibers

A

corpus callosum

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32
Q

what connects rt and lt cerebral hemispheres

A

corpus callosum

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33
Q

what is the largest part of the hindbrain

A

cerebellum

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34
Q

what is positioned just below tentorium

A

cerebellum

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35
Q

what communicates with other parts of the brain

A

cerebellum

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36
Q

how does the cerebellum communicate with other parts of the brain

A

by way of superior, middle, and inferior peduncles

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37
Q

what contains medulla oblongata, pons and midbrain

A

brainstem

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38
Q

what is most inferior part of brainstem and hindbrain

A

medulla oblongata

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39
Q

what is the prominent bulge between midbrain and medulla oblongata

A

pons

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40
Q

what is located superior to pons at junction of middle and posterior cranial fossa

A

midbrain

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41
Q

what portion does the cerebral aqueduct transverse brain

A

midbrain

42
Q

what is the portion of the forebrain

A

diencephalon

43
Q

what is composed primarily of thalamus, hypothalamus, epithalamus, and pituitary gland

A

diencephalon/forebrain

44
Q

what is a large nucleus in the medial part of each cerebral hemisphere

A

thalamus

45
Q

what forms part of lateral wall of third ventricle

A

thalamus

46
Q

what is found inferior to thalamus

A

hypothalamus

47
Q

what connects the posterior lobe of pituitary gland by way of infundibulum

A

hypothalamus

48
Q

what is the most significant feature of epithalaums

A

pineal gland

49
Q

what is postponed at roof of midbrain

A

pineal gland

50
Q

what is the pituitary galnd itself composed of

A

anterior lobe and posterior lobe

51
Q

narrow cavity located between rt and lt halves of thalamus

A

third ventricle

52
Q

what is between the cerebellum and the medulla oblongata

A

fourth ventricle

53
Q

what allows for communication between lateral ventricles and third ventricle

A

foramen of monro (interventricular foramen)

54
Q

what is the passage way connecting 3rd and 4th ventricles

A

cerebral aqueduct (Sylvian aqueduct)

55
Q

what connects ventricular system to subarachnoid space

A

foramen of Luschka (lateral aperture)

56
Q

what is the largest opening in 4th ventricle

A

foramen of magenpdie

57
Q

what is a narrow fluid filled space circulating CSF in and around brain

A

subarachnoid space

58
Q

what is each cistern named according to

A

structure it borders

59
Q

what is the largest cistern

A

cistern magna

60
Q

where is choroid plexus located

A

on floor of lateral ventricles

61
Q

what is the network of capillaries that produces the CSF

A

choroid plexus

62
Q

what are the 3 meninges

A

dura mater, arachnoid membrane, and pia mater

63
Q

what is the tough outermost membrane of brain and spinal cord

A

dura mater

64
Q

what is fibrous membrane attached to inner table of skull

A

dura mater

65
Q

what are the 4 extensions into surfaces of brain of dura mater

A

falx cerebri, falx cerebelli, tentorium cerebelli, and arachnoid layer

66
Q

what is the section of dura mater that folds into longitudinal fissure of brain

A

falx cerebri

67
Q

what separates the 2 hemispheres of cerebrum

A

falx cerebri

68
Q

what is folds of dura mater that forms a vertical partition between the 2 hemispheres of cerebellum

A

falx cerebelli

69
Q

what is the fold of dura mater located in the transverse cerebral fissure

A

tentorium cerebelli

70
Q

area outside dura mater

A

epidural space

71
Q

space below dura mater

A

subdural space

72
Q

what covers sella turcica

A

diaphragma sellae

73
Q

middle meninx covering brain and spinal cord

A

arachnoid layer

74
Q

fibrous membrane attache to inside of dura mater

A

arachnoid layer

75
Q

innermost membrane of brain and spinal cord

A

pia mater

76
Q

what is the highly vascular membrane attached to surface of brain

A

pia mater

77
Q

what is the arterial anastomosis referred to as

A

circle of willis

78
Q

what are the arteries that are included in circle of willis

A

internal carotid, posterior cerebral, anterior cerebral, posterior communicating, anterior communicating, and basilar artery

79
Q

what is the blood supplied to circle of wills by

A

basilar, and two internal carotid arteries

80
Q

where does the basilar artery supply blood to in brain

A

posterior portion

81
Q

what are branches of the common carotid arteries

A

internal carotid arteries

82
Q

where does the internal carotids supply blood to in brain

A

anterior, medial, and lateral regions

83
Q

what circulates blood between major vessels that supply blood to the brain

A

communicating arteries

84
Q

what joins the anterior cerebral arteries

A

anterior communicating artery

85
Q

what are branches off of the internal carotids

A

anterior cerebral arteries

86
Q

where does anterior cerebral arteries supply blood to in brain

A

anterior and medial

87
Q

what joins the posterior cerebral arteries with the internal carotid arteries

A

posterior communicating arteries

88
Q

what are branches off of the basilar artery

A

posterior cerebral arteries

89
Q

where doe posterior cerebral arteries supply blood to brain

A

posterior portion

90
Q

what is middle cerebral a branch from

A

internal carotid artery

91
Q

where does middle cerebral supply blood to

A

lateral aspect of brain

92
Q

what are the cerebral sinuses

A

venous drainage of brain

93
Q

what is the venous cavity lying between two dural laters of falx cerebri along its attachment to inner table of skull

A

superior sagittal sinus

94
Q

what does superior sagittal sinus continue as

A

transverse sinus

95
Q

what is much smaller than superior sagittal sinus

A

inferior sagittal sinus

96
Q

where does the inferior sagittal sinus vein run

A

posteriorly along the free edge of the falx cerebri

97
Q

what is the venous space in the tentorium cerebelli along its attachment to he occipital bone

A

transverse sinus

98
Q

what is the venous cavity formed by the junction of the inferior sagittal sinus

A

straight sinus

99
Q

what is the great cerebral vein located along the attachment of the flax cerebri and tentorium cerebelli

A

straight sinus

100
Q

what is the posterior junction of the superior sagittal, straight, and transverse sinus

A

confluence of the sinus

101
Q

what is the continuation of the transverse sinus towards the jugular foramen dumping into the internal jugular vein

A

sigmoid sinus

Sectional Anatomy (14 decks)

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