The sense organs: THE EAR

Front

What is the function of the auditory canal?

Back

To direct sound waves to the eardrum.

Front

Which structure of the ear is responsible for balance?

Back

Semi-circular canals.

Front

What happens when sound waves cause the eardrum to vibrate?

Back

The vibrations are passed on to the ossicles.

Front

What does the Eustachian tube connect?

Back

The middle ear to the pharynx.

Front

What is the function of the auditory nerve?

Back

To transmit the nerve impulse to the cerebrum.

Front

What are the ossicles?

Back

Three tiny bones in the middle ear that amplify sound vibrations.

Front

What is the cochlea?

Back

A spiral-shaped organ in the inner ear that converts sound vibrations into nerve impulses.

Front

What role does the tympanic membrane play in hearing?

Back

It vibrates in response to sound waves, transmitting vibrations to the ossicles.

Front

What is the function of the vestibule in the ear?

Back

It helps with balance and spatial orientation.

Front

How does the ear help in equalizing air pressure?

Back

The Eustachian tube allows air to flow between the middle ear and the pharynx.