Prepare for the Individual Readiness Assurance Test (iRAT) 4 in Head and Neck. Study with multiple-choice questions, comprehensive explanations, and detailed flashcards. Maximize your chances of success with thorough preparation and insightful study resources.

Multiple Choice

Which cranial nerves pass through the superior orbital fissure?

The superior orbital fissure serves as a passage for the nerves that control most eye movements and provide sensation to the forehead and orbit. The nerves that pass through this fissure are the oculomotor nerve (CN III), the trochlear nerve (CN IV), the ophthalmic division of the trigeminal nerve (CN V1), and the abducens nerve (CN VI). The optic nerve (CN II) goes through the optic canal, not the fissure, and the maxillary division (CN V2) travels through the foramen rotundum and infraorbital route, not via the superior orbital fissure. So the nerves that traverse the superior orbital fissure are CN III, CN IV, CN V1, and CN VI.

The superior orbital fissure serves as a passage for the nerves that control most eye movements and provide sensation to the forehead and orbit. The nerves that pass through this fissure are the oculomotor nerve (CN III), the trochlear nerve (CN IV), the ophthalmic division of the trigeminal nerve (CN V1), and the abducens nerve (CN VI). The optic nerve (CN II) goes through the optic canal, not the fissure, and the maxillary division (CN V2) travels through the foramen rotundum and infraorbital route, not via the superior orbital fissure. So the nerves that traverse the superior orbital fissure are CN III, CN IV, CN V1, and CN VI.