Middle Ear Anatomy
Across
- 2. Don’t mix this up with a winter time sighting. The ______ transmit sound waves from the outer to the inner ear.
- 8. This muscle pulls the ossicular chain anteriorly.
- 10. This muscle opens the eustachian tube.
- 11. No fibers are found in this part of the tympanic membrane.
- 13. This part of the tympanic membrane vibrates more than the other portion.
- 15. The middle ear is located within this bone.
- 16. Sound vibration is ______ in the middle ear.
- 18. This is the middle bone in the ossicular chain.
- 20. This window bounds the interior of the middle ear.
- 21. This hollow structure houses the stapedius muscle.
Down
- 1. On the stapes, the ___________ crus is longer and wider.
- 3. The smallest bone in the human body.
- 4. Don’t hit this drum too hard! This is the external border of the middle ear.
- 5. This bulb pushes on the inferior wall of the middle ear space.
- 6. This membrane sits at a 55 degree angle as compared to the ear canal.
- 7. The ______ of the stapes is composed of two parts.
- 9. This tube is more horizontal in children than in adults.
- 12. This bone’s handle is embedded in the tympanic membrane.
- 14. On the staples, the ________ crus is shorter and thinner.
- 17. The _____ artery runs inferior to the eustachian tube and must be heeded during aural surgery.
- 19. This knob can be seen on the tympanic membrane during an otoscopic examination.