Foramina of Cranial Base Self Quiz

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Foramina of Cranial BaseSelf Quiz
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• NAME THE KEY STRUCTURE(S) PASSING THROUGH EACH
  FORAMEN

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• Foramina of Cribriform Plate

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• 1. Olfactory Nerve Bundles

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• Optical Canal

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• 1. Optic Nerve (II)
• 2. Ophthalmic Artery

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• Superior Orbital Fissure

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• 1. Oculomotor Nerve (III)
• 2. Trochlear Nerve (IV)
• 3. Ophthalmic Nerve (V1)
• 4. Abducent Nerve (VI)
• 5. Superior Ophthalmic Vein

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Quick Question

• What are the 3 branches of the ophthalmic nerve
  that pass through the superior optical fissure ?

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Answer

• 1. Lacrimal branch
• 2. Frontal branch
• 3. Nasociliary branch

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• Foramen Rotundum

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• 1. Maxillary Nerve (V2)

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• Foramen Ovale

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• 1) Mandibular Nerve (V3)
• 2) Accessory Meningeal Artery
• 3) Lesser Petrosal Nerve
• (occasionally)

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• Foramen Spinosum

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• 1) Mandibular Nerve
• a. Meningeal branch
• 2) Middle Meningeal Artery
• 3) Middle Meningeal Vein

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• Foramen Lacerum

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• Nothing Major
• (Check to make sure)

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• Carotid Canal

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• 1) Internal Carotid Nerve Plexus
• 2) Internal Carotid Artery

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• Internal Acoustic Meatus

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• 1) Facial Nerve (VII)
• 2) Vestibulocochlear Nerve (VIII)
• 3) Labyrinthine Artery

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• Jugular Foramen

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• 1) Glossopharyngeal Nerve (IX)
• 2) Vagus Nerve (X)
• 3) Accessory Nerve (XI)
• 4) Posterior Meningeal Artery
• Inferior petrosal sinus
• Sigmoid sinus

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• Hypoglossal Canal

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• 1) Hypoglossal Nerve (XII)

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• Foramen Magnum

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• 1) Medulla Oblongata
• 2) Meninges
• 3) Spinal Roots of Accessory Nerves
• 4) Vetebral Arteries
• 5) Meningeal branches of vertebral arteries