Ear Anatomy Review

Front

What is the organ of Corti?

Back

The organ of Corti is a structure located in the cochlea of the inner ear that contains hair cells, which are sensory receptors for sound. It plays a crucial role in the process of hearing.

Front

What is the function of the oval window?

Back

The oval window is a membrane-covered opening that connects the middle ear to the inner ear. It transmits sound vibrations from the stapes (a bone in the middle ear) to the fluid in the cochlea.

Front

What is the bony labyrinth?

Back

The bony labyrinth is a complex system of interconnected cavities in the inner ear, consisting of the cochlea, vestibule, and semicircular canals. It houses the structures responsible for hearing and balance.

Front

What is the utricle?

Back

The utricle is one of the two otolith organs located in the vestibule of the inner ear. It helps detect linear acceleration and the position of the head relative to gravity.

Front

What is the auricle?

Back

The auricle, also known as the pinna, is the external part of the ear that collects sound waves and directs them into the ear canal.

Front

What role do hair cells play in hearing?

Back

Hair cells are sensory cells located in the organ of Corti that convert sound vibrations into electrical signals, which are then transmitted to the brain via the auditory nerve.

Front

What is the cochlea?

Back

The cochlea is a spiral-shaped, fluid-filled structure in the inner ear that is responsible for converting sound vibrations into neural signals.

Front

What is the function of the semicircular canals?

Back

The semicircular canals are three fluid-filled structures in the inner ear that help maintain balance and spatial orientation by detecting rotational movements of the head.

Front

What is the role of the eustachian tube?

Back

The eustachian tube connects the middle ear to the nasopharynx and helps equalize air pressure on both sides of the eardrum.

Front

What is the tympanic membrane?

Back

The tympanic membrane, or eardrum, is a thin membrane that vibrates in response to sound waves, transmitting these vibrations to the ossicles in the middle ear.