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Cards In This Set
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External ear
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Outer structures of the ear that collect sound
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Pinna
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Auricle (little ear); projected part of the external ear
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External auditory meatus or canal
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External passage for sounds collected from the pinna to the tympanum
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Cerumen
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A waxy substance secreted by glands located throughout the external canal
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Middle ear
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Structures in the middle of the ear that vibrate sound from the tympanic membrane to the inner ear
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Tympanic membrane (TM)
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Eardrum; drum-like structure that receives sound collected in the external auditory canal and amplifies it through the middle ear
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Malleus
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Hammer; first of the three auditory ossicles of the middle ear
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Incus
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Anvil; middle of the three auditory ossicles of the middle ear
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Stapes
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Stirrup; last of the three auditory ossicles of the middle ear
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Eustachian tube / auditory tube
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Tube connecting the middle ear to the pharynx (throat)
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Oval window
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Membrane that covers the opening between the middle ear and inner ear
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Inner ear; labyrinth
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Intricate, fluid-filled, intercommunicating bony and membranous passages that function in hearing by relaying sound waves to auditory nerve fibers on a path to the brain for interpretation; also sense body movement and position to maintain balance and equilibrium
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Cochlea
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Coiled tubular structure of the inner ear that contains the organ of Corti
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Perilymph
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Fluid that fills the bony labyrinth of the inner ear
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Endolymph
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Fluid within the membranous labyrinth of the inner ear
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