The Ear : Hearing and balance

Oval window

The stirrup presses on this structure to transmit the motion to the fluid in the inner ear.

Tympanic membrane

Vibrates as the sound waves hit it to create mechanical motion.

Semicircular canals, Vestibule

Which 2 structures contain receptors for the sense of equilibrium?

Hammer (malleus)

Which auditory ossicle is attached to the tympanic membrane?

Endolymph

Which fluid bathes the sensory receptors of the inner ear?

Perilymph

Which fluid is contained within the osseous labyrinth?

Round window

Which structure dissipates fluid waves traveling in the perilymph?

Semicircular canals

Which structure monitors dynamic equilibrium? / Which structure contains the crista ampullaris?

Vestibule

Which structure monitors static equilibrium? / Which structure contains the utricle and saccule?

Eustachian (Pharyngotympanic) tube

Allows air pressure in the middle ear to be equalized with atmospheric pressure.

Anvil (incus) , Hammer (malleus), Stirrup

Collectively these 3 structures make up the auditory ossicles.

Cochlea

Contains the organ of Corti.

Pinna, External auditory meatus, Tympanic membrane

Identify the 3 structures making up the external ear.