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* Sem 3 - Stuff I Don't Know * > Skull Foramen and Cranial Nerves > Flashcards

Skull Foramen and Cranial Nerves Flashcards

1
Q

Cribiform foramina in cribiform plate

A

Olfactory nerve (CN I) + anterior ethmoid always nerves

Anterior cranial fossa

Ethmoid bone

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2
Q

Optic canal

A

Optic nerve (CN II) + ophthalmic artery

Middle cranial fossa

Sphenoid bone

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3
Q

Superior orbital fissure

A

Lacrimal nerve + frontal nerve (branch of CN Va) + superior ophthalmic vein + trochlear nerve (CN IV) + superior division of oculomotor nerve (CN III) + nasociliary nerve (branch of CN Va) + inferior division of oculomotor nerve (CN III) + abductees nerve (CN VI) + branch of the inferior ophthalmic vein

Middle cranial fossa

Sphenoid bone

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4
Q

Foramen rotundum

A

Maxillary branch of trigeminal nerve (CN Vb)

Middle cranial fossa

Sphenoid bone

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5
Q

Foramen ovale

A

Mandibular branch of trigeminal nerve (CN Vc)

Middle cranial fossa

Sphenoid bone

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6
Q

Foramen spinosum

A

Middle meningeal artery + middle meningeal vein + meningeal branch of CN Vc

Middle cranial fossa

Sphenoid bone

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7
Q

Internal acoustic meatus

A

Facial nerve (CN VII) + vestibulocochlear nerve (CN VIII) + vestibular ganglion + labyrinthine artery

Middle cranial fossa

Petrous part of temporal bone

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8
Q

Jugular foramen

A

Glossopharyngeal nerve (CN IX) + vagus nerve (CN X) + accessory nerve (CN XI) + jugular bulb + inferior petrosal and sigmoid sinuses

Posterior cranial fossa

Anterior aspect: petrous portion of the temporal
Posterior aspect: occipital bone

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9
Q

Hypoglossal canal

A

Hypoglossal nerve (CN XII)

Posterior cranial fossa

Occipital bone

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10
Q

Foramen magnum

A

Vertebral arteries + medulla and meninges + CN XI (spinal division) + dural veins + anterior and posterior spinal arteries

Posterior cranial fossa

Occipital bone

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11
Q

CN I

A

Olfactory
Sensory
Forebrain

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12
Q

CN II

A

Optic
Sensory
Forebrain

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13
Q

CN III

A

Oculomotor
Motor
Midbrain

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14
Q

CN IV

A

Trochlear
Motor
Midbrain

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15
Q

CN V

A

Trigeminal
Both - sensory and motor
Pons

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16
Q

CN VI

A

Abducens
Motor
Pons

17
Q

CN VII

A

Facial
Both - sensory and motor
Pons

18
Q

CN VIII

A

Vestibulocochlear
Sensory
Pons

19
Q

CN IX

A

Glossopharyngeal
Both - sensory and motor
Medulla

20
Q

CN X

A

Vagus
Both - sensory and motor
Medulla

21
Q

CN XI

A

Accessory
Motor
Medulla

22
Q

CN XII

A

Hypoglossal
CN XII
Medulla

* Sem 3 - Stuff I Don't Know * (7 decks)

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