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ENETEMY > Foramina Of The Skull Base > Flashcards

Foramina Of The Skull Base Flashcards

1
Q

OPTIC CANAL

A

Optic nerves

Opthalmic arteries

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2
Q

SUPERIOR ORBITAL FISSURE

A 
CN III
CN IV
CN V1 (orbital)
CN VI 
Superior orbital vein
Branch of the middle meningeal artery
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3
Q

INFERIOR ORBITAL FISSURE

A

Infraorbital nerve
Infraorbital artery
Inferior ophthalmic veins

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4
Q

FORAMEN ROTUNDUM

A

CN V2 (maxillary)

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5
Q

FORAMEN OVALE

A 
CN V3 (mandibular)
Accessory meningeal artery
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6
Q

FORAMEN SPINOSUM

A

Middle meningeal artery

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7
Q

FORAMEN LACERUM

A

Internal carotid artery

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8
Q

INTERNAL AUDITORY MEATUS AND CANAL

A

CN VII
CN VIII
Internal auditory artery

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9
Q

JUGULAR FORAMEN

A

Internal jugular vein
CN XI
CN X
CN XI
Inferior petrosal sinus (drains into the IJV)
Ascending occipital and pharyngeal arterial branches

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10
Q

HYPOGLOSSAL CANAL

A

CN XII

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11
Q

FORAMEN MAGNUM

A

Medulla oblingata/spinal cord, along vertebral and spinal arteries and veins
CN XI spinal roots

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12
Q

Sphenoid bone

From the middle cranial fossa to the orbital apex

A

SUPERIOR ORBITAL FISSURE

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13
Q

Between maxilla and sphenoid bones
At its posterior part it forms an opening between the orbit and the pterygopalatine fossa and more anteriorly between the orbital cavity and the infratemporal fossa

A

INFERIOR ORBITAL FISSURE

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14
Q

Sphenoid bone

Middle cranial fossa to orbital apex

A

OPTIC CANAL

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15
Q

Sphenoid bone

From the middle cranial fossa to the pterygopalatine fossa

A

FORAMEN ROTUNDUM

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16
Q

Sphenoid bone

From the middle cranial fossa to the infratemporal fossa

A

FORAMEN OVALE

17
Q

Sphenoid bone

From the infratemporal to the middle cranial fossa

A

FORAMEN SPINOSUM

18
Q

Apex of temporal bone

A

FORAMEN LACERUM

19
Q

Petrous temporal bone

From the posterior cranial fossa to inner ear

A

INTERNAL AUDITORY MEATUS

20
Q

Junction of occipital and petroud temporal bones

Not visible on SMV

A

JUGULAR FORAMEN

21
Q

Occipital bone

A

HYPOGLOSSAL CANAL

22
Q

Occipital bone

From the posterior cranial fossa to the spinal canal

A

FORAMEN MAGNUM

ENETEMY (2 decks)

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