The document summarizes the anatomy and physiology of the human ear. It is divided into three main parts: the external ear, the middle ear, and the inner ear. The external ear collects sound waves and directs them through the ear canal to the eardrum. The middle ear contains three small bones that vibrate in response to sounds and transmit the vibrations deeper into the ear. The inner ear is a maze of fluid-filled tubes that contains sensory cells that convert sound vibrations into nerve signals sent to the brain.

1. Anatomy & Physiology of the Ear
“On the outside
looking in.”
Middle of the
road.
The Inner
Sanctum.
Lets “hear” it
for the ear.
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2. Collects and directs sound waves
through the auditory canal to the
eardrum.
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3. What is the external ear?
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4. Too much of this can block sound
transmission.
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5. What is earwax or cerumen?
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6. The part of the ear you can see.
(another name for external ear)
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7. What is pinna?
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8. Collects and directs sound waves
through the auditory canal to the
eardrum.
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9. What is the external ear or pinna?
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10. Separated from the external ear by
the eardrum and is an air filled cavity
carved out of the temporal bone.
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11. What is the middle ear?
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12. Another name for eardrum
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13. What is the tympanic membrane?
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14. Eustachian tube
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15. What connects the middle ear to the
throat / nasopharnyx?
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16. Opens the Eustachian tube to allow air
in or out, as needed for equalization.
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17. What is a chewing and / or swallowing
motion?
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18. Consists of a maze of fluid-filled
tubes, running through the temporal
bone of the skull.
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19. What is the inner ear?
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20. The fluid that fills the bony tubes also
known as the bony labyrinth.
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21. What is the perilymph?
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22. Located in the inner ear, two
membrane-covered outlets into the
air-filled middle ear.
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23. What is the oval window and the round
window?
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24. The fluid that fills a series of delicate
cellular tubes, called the membranous
labyrinth.
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25. What is endolymph?
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26. The nerve in which nerve impulses
generated in the inner ear travel along
and that leads to the brain.
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27. What is the vestibulocochlear nerve?
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28. The three smallest bones in the human
body.
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29. What are the hammer (malleus), the
anvil (incus), and the stirrup (stapes)?
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30. Three linked, movable, bones adjoining
the eardrum.
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31. What are the Ossicles?
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32. Vibrates in response to sound pressure
waves.
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33. What is the eardrum?
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