Understanding the Cochlea

What is the primary function of the cochlea in the human ear?

• Balance maintenance

• Hearing

• Smell detection

• Taste perception

Which part of the cochlea is described as a snail shell-shaped structure?

• Ossicles

• Cochlea

• Tympanic membrane

• Ear canal

What is the fluid called that fills the bony labyrinth of the cochlea?

• Endolymph

• Perilymph

• Cerebrospinal fluid

• Blood plasma

What is the role of the endolymph in the cochlea?

• To maintain balance

• To transmit electrical impulses

• To protect the ear from infections

• To transfer pressure waves

Which structure in the cochlea is responsible for converting mechanical movement into electrical impulses?

• Ear canal

• Ossicles

• Tympanic membrane

• Organ of Corti

What happens when the ossicles beat against the oval window?

• The tympanic membrane ruptures

• Sound waves are absorbed

• Pressure waves are created

• The ear canal vibrates

What is the function of the tiny hair cells in the organ of Corti?

• To create electrical impulses

• To protect the cochlea

• To amplify sound

• To detect balance

How does the cochlea prevent sound wave reverberation?

• By converting sound waves into heat

• By absorbing sound waves

• By allowing sound waves to exit

• By reflecting sound waves back

What is the purpose of the cross-section view of the cochlea?

• To show the outer ear structure

• To illustrate the flow of sound waves

• To highlight the tympanic membrane

• To display the ossicles

What is the significance of the cochlear duct in the cochlea?

• It is filled with perilymph

• It connects to the ear canal

• It is filled with endolymph

• It contains the ossicles