“On the outside looking in.”

Middle of the road.

The Inner Sanctum.

Lets “hear” it for the ear.

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Anatomy & Physiology of the Ear

Collects and directs sound waves through the auditory canal to the

eardrum.

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What is the external ear?

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Too much of this can block sound transmission.

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What is earwax or cerumen?

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The part of the ear you can see. (another name for external ear)

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What is pinna?

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Collects and directs sound waves through the auditory canal to the eardrum.

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What is the external ear or pinna?

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Separated from the external ear by the eardrum and is an air filled cavity carved out of the temporal bone

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What is the middle ear?

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Another name for eardrum

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What is the tympanic membrane?

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Eustachian tube

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What connects the middle ear to the throat / nasopharnyx?

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Opens the Eustachian tube to allow air in or out, as needed for equalization.

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What is a chewing and / or swallowing motion?

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Consists of a maze of fluid-filled tubes, running through the temporal bone of the skull.

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What is the inner ear?

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The fluid that fills the bony tubes also known as the bony labyrinth.

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What is the perilymph?

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Located in the inner ear, two membrane-covered outlets into the air-filled middle ear.

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What is the oval window and the round window?

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The fluid that fills a series of delicate cellular tubes, called the membranous labyrinth.

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What is endolymph?

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The nerve in which nerve impulses generated in the inner ear travel along and that leads to the brain.

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What is the vestibulocochlear nerve?

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The three smallest bones in the human body.

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What are the hammer (malleus), the anvil (incus), and the stirrup (stapes)?

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Three linked, movable, bones adjoining the eardrum.

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What are the Ossicles?

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Vibrates in response to sound pressure waves.

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What is the eardrum?

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