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Chapter 8
The human ear
14
Anatomy
Undergraduate 1
03/15/2008

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Term
Structures composing the outer ear
Definition

Pinna, external acoustic meatus, 

and the timpanic membrane

Term
Collectively called the ossicles
Definition
Incus, stapes, and malleus
Term
Structures composing the bony labyrinth
Definition
Cochlea, semicircular canals,and vestibule
Term
Ear structure not involved with hearing
Definition
Semicircular canals and, vestibule
Term

Allows pressure in the middle ear to be

equalized with the atmospheric pressure 

Definition
The auditory tube
Term
Transmits the vibrations to the ossicles
Definition
The tympanic membrane
Term
Contains the organ of Corti
Definition
The cochlea
Term
Connects the nasopharynx and the middle ear
Definition
The auditory tube
Term
Contain receptors for the sense of equilibrium
Definition
Semicircular canals and the vestibule
Term

Transmits the vibrations from the stapes to the

fluid in the inner ear 

Definition
The oval window
Term

Fluid that bahtes the sensory receptors

of the  inner ear 

Definition
The endolymph
Term
What is the maculae?
Definition
Patch of receptors cells with their hairs.
Term
What is the crista ampullaris?
Definition
Is the dynamic equilibrium receptor region
Term
Name the two kinds of deafness
Definition
Conduction and sensorineural. Conduction deafness is when something interferes with the conduction of sound vibrations to the fluids of the inner ear. Sensorineural deafness is when there is degeneration or damage to the receptor cells in the organ of corti.
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