Ears and Mechanism of Hearing

Sound is produced by

• vacuum

• sound wave

• hitting

• vibration

Name the ear structure labeled 5.

• Eardrum

• Cochlea

• Pinna

• Eustachian tube

Which part of ear is not involved in the hearing mechanism and only function in equalising the air pressure on both side of eardrum?

• Pinna

• Cochlea

• Auditory nerve

• Eustachian tube

Which label is correctly matched?

• 6 Eardrum

• 2 Cochlea

• 1 Pinna

• 8 Semicircular canal

The human ear is made up of the

• inner ear

• outer ear

• middle ear

________________ vibrates when sound waves hit it.

• Eardrum

• Cochlea

• Pinna

• Ossicles

The ___________________ collects and directs sound waves into the ear canal.

• cochlea

• auditory nerve

• oval window

• pinna

Besides hearing, your ears also help to keep you _________________.

• safe

• healthy

• balanced

The _________________ direct sound waves to the eardrum.

• ossicles

• ear canal

• auditory nerves

Since human beings have limitation of hearing, the doctors use a ________________ to listen to the heartbeat of a patient.

• stethoscope

• hearing aid

• megaphone