Beginner Superior Orbital Fissure Quiz

Q1. Which bone contains the superior orbital fissure?

• Ethmoid bone
• Maxilla
• Frontal bone
• Sphenoid bone

Q2. Between which parts of the sphenoid is the superior orbital fissure located?

• Greater wing and sphenoidal rostrum
• Body and medial pterygoid plate
• Two pterygoid plates
• Greater and lesser wings

Q3. Which cranial nerve controlling most extraocular muscles passes through the superior orbital fissure?

• Oculomotor nerve, CN III
• Hypoglossal nerve, CN XII
• Facial nerve, CN VII
• Optic nerve, CN II

Q4. Which cranial nerve supplying the superior oblique muscle passes through the superior orbital fissure?

• Trochlear nerve, CN IV
• Accessory nerve, CN XI
• Trigeminal nerve, CN V3
• Glossopharyngeal nerve, CN IX

Q5. Which cranial nerve supplying the lateral rectus muscle passes through the superior orbital fissure?

• Vagus nerve, CN X
• Abducens nerve, CN VI
• Optic nerve, CN II
• Facial nerve, CN VII

Q6. Which division of the trigeminal nerve enters the orbit through the superior orbital fissure?

• Motor root of CN V
• Ophthalmic division, V1
• Mandibular division, V3
• Maxillary division, V2

Q7. Which major vein leaves the orbit through the superior orbital fissure toward the cavernous sinus?

• Retromandibular vein
• Superior ophthalmic vein
• Internal jugular vein
• Facial vein

Q8. What major cavity communicates with the middle cranial fossa through the superior orbital fissure?

• Nasal vestibule
• Oral cavity
• Orbit
• Middle ear

Q9. Which canal lies medial to the superior orbital fissure at the orbital apex?

• Optic canal
• Hypoglossal canal
• Carotid canal
• Mandibular canal

Q10. Which nerve does NOT pass through the superior orbital fissure?

• Abducens nerve, CN VI
• Oculomotor nerve, CN III
• Trochlear nerve, CN IV
• Optic nerve, CN II