Cranial nerve pathways and foramina, neck triangles, and facial muscle innervation tested on USMLE Step 1.
40 cards · basic cards · AI-written, checked twice. Edit anything.
- Which foramen does the olfactory nerve (CN I) pass through to reach the nasal cavity?
- The cribriform plate of the ethmoid bone
- Which foramen transmits the optic nerve (CN II)?
- The optic canal
- Through which opening does the oculomotor nerve (CN III) leave the skull?
- The superior orbital fissure
- Through which opening does the trochlear nerve (CN IV) leave the skull?
- The superior orbital fissure
- Through which opening does the ophthalmic nerve (CN V1) leave the skull?
- The superior orbital fissure
- Through which foramen does the maxillary nerve (CN V2) leave the skull?
- Foramen rotundum
- Through which foramen does the mandibular nerve (CN V3) leave the skull?
- Foramen ovale
- Through which opening does the abducens nerve (CN VI) leave the skull?
- The superior orbital fissure
- Through which opening does the facial nerve (CN VII) enter the temporal bone from the posterior cranial fossa?
- The internal acoustic meatus
- Through which foramen does the facial nerve (CN VII) exit the skull after traveling through the facial canal?
- The stylomastoid foramen
- Through which opening does the vestibulocochlear nerve (CN VIII) enter the temporal bone?
- The internal acoustic meatus
- Which three cranial nerves exit the skull together through the jugular foramen?
- CN IX (glossopharyngeal), CN X (vagus), and CN XI (accessory)
- Through which canal does the hypoglossal nerve (CN XII) leave the skull?
- The hypoglossal canal
- What major artery passes through the foramen spinosum?
- The middle meningeal artery
- What major artery passes through the carotid canal?
- The internal carotid artery