Cranial nerve anatomy at the skull base
Watch the video here for free, with no account or subscription. Try a sample question; membership adds the companion chapter and full quiz.
Read deeper. Practice the reasoning.
The video above is free for everyone. Membership unlocks the companion chapter and the complete Step 1 style question block for this and other published lessons.
Unlock chapters & practiceAlready a member? Sign in
Apply the idea.
Choose an answer, then see the reasoning. The full question block is included with membership.
A 28-year-old man strikes his forehead in a bicycle collision. He subsequently cannot detect odors despite patent nasal passages. Clear fluid drains from his nose when he leans forward; testing detects beta-2 transferrin. A fracture has disrupted the bony passage used by the injured sensory fibers and created a communication with the cranial cavity.