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Anatomy > Cranial Fossa > Flashcards

Cranial Fossa Flashcards

1
Q

Nerve that runs along cribiform plate

A

CN I (olfactory nerve)

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2
Q

CN I runs through this foarmen of the anterior cranial fossa

A

Cribiform plate

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3
Q

Component of the cranial fossa that is formed by the frontal bone, ethmoid bone, and sphenoid bone

A

Anterior cranial fossa

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4
Q

Component of the cranial fossa that is formed by the sphenoid bone and temporal bone

A

Middle cranial fossa

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5
Q

Component of the cranial fossa that is formed by the occipital bone, temporal bone (petrous part, mastoid part), sphenoid bone (body)

A

Posterior cranial fossa

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6
Q

Bones that form the anterior cranial fossa

A

Frontal, ethmoid, sphenoid

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7
Q

Bones that form the middle cranial fossa

A

Sphenoid and temporal

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8
Q

Bones that form the posterior cranial fossa

A

Occipital, temporal, sphenoid

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9
Q

Foramen of the middle cranial fossa that contains CN II and opthalmic artery

A

Optic canal

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10
Q

Foramen of the middle cranial fossa that contains superior opthalmic vein, CN III, CN IV, CN V1, CN VI, sympathetic fibers

A

Superior orbital fissure

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11
Q

Foramen of the middle cranial fossa that contains CN V2

A

Foramen rotundum

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12
Q

Foramen of the middle cranial fossa that contains CN V3

A

Foramen ovale

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13
Q

Foramen of the middle cranial fossa that contains the middle meningeal artery

A

Foramen spinosum

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14
Q

Foramen of the middle cranial fossa that contains the internal carotid artery

A

Foramen lacerum

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15
Q

Foramen of the middle cranial fossa that is below the middle cranial fossa and contains the internal carotid artery

A

Carotid canal

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16
Q

Contents of the optic canal

A

CN II and ophthalmic artery

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17
Q

Contents of the superior orbital fissure (6)

A

Superior ophthalmic vein, CN III, CN IV, CN V1, CN VI, sympathetic fibers

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18
Q

Contents of the foramen rotundum

A

CN V2

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19
Q

Contents of the foramen ovale

A

CN V3

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20
Q

Contents of the foramen spinosum

A

Middle meningeal artery

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21
Q

Contents of the foramen lacerum

A

Internal carotid artery

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22
Q

Contents of the carotid canal

A

Internal carotid artery

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23
Q

Contents of the foramen magnum (5)

A

Spinal cord, meninges, CN XI, spinal and vertebral arteries

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24
Q

Contents of the jugular foramen (6)

A

CN IX, CN X, CN XI, internal jugular vein, sigmoid sinus, inferior petrosal sinus

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25
Q

Contents of the hypoglossal canal

A

CN XII

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26
Q

Contents of the internal acoustic meatus (3)

A

CN VII, CN VIII, labyrinthine (auditory) artery

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27
Q

Foramen of the posterior cranial fossa that contains the spinal cord, meninges, CN XI, and spinal and vertebral arteries

A

Foramen magnum

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28
Q

Foramen of the posterior cranial fossa that contains CN IX, CN X, CN XI, internal jugular vein, sigmoid sinus, inferior petrosal sinus

A

Jugular foramen

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29
Q

Foramen of the posterior cranial fossa that contains CN XII

A

Hypoglossal canal

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30
Q

Foramen of the posterior cranial fossa that contains CN VII, CN VIII, labyrinthe (auditory) artery

A

Internal acoustic meatus

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31
Q

Cranial meninge that is dense connective tissue and contains the sinuses and forms fold of septa

A

Dura mater

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32
Q

Sensory innervation to the dura mater

A

CN V (trigeminal nerve; V1, V2, and V3) and upper cervical plexus

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33
Q

Space which contains CSF

A

Subarachnoid space

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34
Q

Cranial meninge that is a web-like connective tissue matrix

A

Arachnoid mater

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35
Q

Cranial meninge that is a thin connective tissue membrane

A

Pia mater

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36
Q

Branch of maxillary artery that passes through the foramen spinosum

A

Middle meningeal artery

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37
Q

Arterial supply to most of the cranial dura mater (4/5ths)

A

Middle meningeal artery

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38
Q

Fold of dura mater that is a sickle shaped sheet of dura that forms a partition between the two cerebral (cortical) hemispheres

A

Falx cerebri

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39
Q

The Falx cerebri forms a partition between these structures

A

The two cerebral (cortical) hemispheres

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40
Q

Attachment of the Falx cerebri

A

Anteriorly to the cristal galli of the ethmoid bone

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41
Q

Fold of dura mater that separates the cerebral hemisphere from the cerebellum
Forms roof over posterior cranial fossa

A

Tentorium cerebelli

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42
Q

The tentorium cerebelli separates these structures

A

Cerebral hemisphere from the cerebellum

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43
Q

Fold of dura mater that is a small sickle shaped fold that extends slightly between the cerebellar hemispheres

A

Falx cerebelli

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44
Q

The Falx cerebelli extends between these structures

A

Cerebellar hemispheres

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45
Q

Structures that act as one-way valves permitting the CSF to flow into the venous system

A

Arachnoid granulations

46
Q

Venous sinus of the dura mater that is located within the superior part of falx cerebri

A

Superior sagittal sinus

47
Q

The superior sagittal sinus drains into this

A

Confluens of sinuses

48
Q

Venous sinus of the dura mater that contains many arachnoid villa that constitute the main site of passage of CSF into the venous blood

A

Superior sagittal sinus

49
Q

Venous sinus of the dura mater that is located on the free margin (inferior border of the falx cerebri)

A

Inferior sagittal sinus

50
Q

The superior sagittal sinus drains into this

A

Straight sinus

51
Q

Venous sinus of the dura mater that is located in the tentorium cerebelli

A

Straight sinus

52
Q

The straight sinus drains into this

A

Confluens of sinuses

53
Q

Venous sinus of the dura mater that is located on midline between the left and right transverse sinuses

A

Confluence of sinuses

54
Q

Venous sinus of the dura mater that begins near the internal occipital protuberance

A

Transverse sinus

55
Q

The transverse sinus drains into this

A

Sigmoid sinus

56
Q

Venous sinus of the dura mater that is continuous with the jugular foramen in posterior cranial fossa

A

Sigmoid sinus

57
Q

Venous sinus of the dura mater that is located on the occipital bone along the midline

A

Occipital sinus

58
Q

Venous sinus of the dura mater that is located on superior ridge of petrous temporal bone

A

Superior petrosal sinus

59
Q

Venous sinus of the dura mater that is located on inferior medial segment of petrous temporal bone

A

Inferior petrosal sinus

60
Q

Venous sinus of the dura mater that is located in the middle cranial fossa, lateral to sphenoid body

A

Cavernous sinus

61
Q

The superior sagittal sinus is located here

A

Within superior part of falx cerebri

62
Q

The inferior sagittal sinus is located here

A

Free margin (inferior border) of the falx cerebri

63
Q

The straight sinus is located here

A

Tentorium cerebelli

64
Q

The confluence of sinuses is located here

A

Midline between the left and right transverse sinuses

65
Q

The transverse sinus begins here

A

Near the internal occipital protuberance

66
Q

The sigmoid sinus becomes continuous with this

A

Jugular foramen in posterior cranial fossa

67
Q

The occipital sinus is located here

A

Occipital bone along the midline

68
Q

The superior petrosal sinus is located here

A

Superior ridge of petrous temporal bone

69
Q

The inferior petrosal sinus is located here

A

Inferior medial segment of petrous temporal bone

70
Q

The cavernous sinus is located here

A

Middle cranial fossa, lateral to sphenoid body

71
Q

Cerebral spinal fluid is formed by this

A

Choroid plexus

72
Q

Specialized capillary network on arterial side of circulatory system that forms the CSF

A

Choroid plexus

73
Q

Other name for CN I

A

Olfactory nerve

74
Q

Other name for CN II

A

Optic nerve

75
Q

Other name for CN III

A

Oculomotor nerve

76
Q

Other name for CN IV

A

Trochlear nerve

77
Q

Other name for CN V

A

Trigeminal nerve

78
Q

Other name for CN VI

A

Abducens nerve

79
Q

Other name for CN VII

A

Facial nerve

80
Q

Other name for CN VIII

A

Vestibulocochlear nerve

81
Q

Other name for CN IX

A

Glossopharyngeal nerve

82
Q

Other name for CN X

A

Vagus nerve

83
Q

Other name for CN XI

A

Accessory nerve

84
Q

Other name for CN XII

A

Hypoglossal nerve

85
Q

Other name for olfactory nerve

A

CN I

86
Q

Other name for optic nerve

A

CN II

87
Q

Other name for oculomotor nerve

A

CN III

88
Q

Other name for trochlear nerve

A

CN IV

89
Q

Other name for trigeminal nerve

A

CN V

90
Q

Other name for abducens nerve

A

CN VI

91
Q

Other name for facial nerve

A

CN VII

92
Q

Other name for vestibulocochlear nerve

A

CN VIII

93
Q

Other name for glossopharyngeal nerve

A

CN IX

94
Q

Other name for vagus nerve

A

CN X

95
Q

Other name for accessory nerve

A

CN XI

96
Q

Other name for hypoglossal nerve

A

CN XII

97
Q

The anterior spinal artery is a branch of this

A

Vertebral artery

98
Q

The posterior spinal artery is a branch of this

A

Posterior inferior cerebellar artery (PICA)

99
Q

Posterior inferior cerebellar artery (PICA) is a branch of this

A

Vertebral artery

100
Q

The basilar artery is formed from these arteries

A

Vertebral arteries

101
Q

The joining of the vertebral arteries forms this artery

A

Basilar artery

102
Q

The anterior inferior cerebellar artery (AICA) is a branch of this

A

Basilar artery

103
Q

The labyrinthine (auditory) artery is a branch of this

A

Anterior inferior cerebellar artery (AICA)

104
Q

Artery that enters the internal acoustic meatus

A

Labryinthine (auditory) artery

105
Q

The labyrinthine (auditory) artery enters this

A

Internal acoustic meatus

106
Q

The superior cerebellar artery is a branch of this

A

Basilar artery

107
Q

3 major arteries of the cerebellum

A

Superior cerebellar artery
Posterior inferior cerebellar artery (PICA)
Anterior inferior cerebellar artery (AICA)

108
Q

5 arteries that form the Circle of Willis

A

Anterior communicating
Anterior cerebral
Internal carotid
Posterior communicating
Posterior cerebral

109
Q

3 major arteries of the cerebral cortex

A

Anterior cerebral artery
Middle cerebral artery
Posterior cerebral artery

110
Q

Most common artery where a stroke occurs

A

Middle cerebral artery

111
Q

Most common location of aneurysm

A

Circle of Willis

Anatomy (23 decks)

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