The Human Ear

How does the ear help with balance?

• The inner ear contains structures that detect changes in position and motion.

• The outer ear amplifies sound waves to assist in balance.

• The ear canal filters out noise to improve balance.

• The eardrum vibrates to maintain equilibrium.

What is the outer part of the ear called?

• Pinna

• Cochlea

• Tympanic membrane

• Auditory canal

What connects the outer ear to the eardrum?

• Ear Canal

• Eustachian Tube

• Auditory Nerve

• Cochlea

What is the role of the pinna?

• To collect sound waves and direct them into the ear canal.

• To amplify sound waves before they enter the ear.

• To protect the inner ear from foreign objects.

• To balance the pressure in the ear during altitude changes.

What is the function of the oval window?

• It transmits vibrations from the middle ear to the inner ear.

• It amplifies sound waves before they enter the cochlea.

• It protects the inner ear from loud noises.

• It converts sound waves into electrical signals.

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What happens when sound waves reach the cochlea?

• They are absorbed by the cochlea and transformed into light.

• They are converted into electrical signals that the brain interprets as sound.

• They are reflected back into the ear canal.

• They cause the cochlea to vibrate without any further processing.

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What is the function of the eardrum?

• To vibrate in response to sound waves and transmit them to the middle ear.

• To amplify sound waves before they reach the inner ear.

• To protect the inner ear from loud noises.

• To convert sound waves into electrical signals.

What is the purpose of the ear canal?

• To amplify sound waves for better hearing.

• To direct sound waves to the eardrum.

• To protect the inner ear from foreign objects.

• To balance the pressure in the ear.

What is the role of the cochlea?

• It converts sound vibrations into electrical signals for the brain.

• It amplifies sound waves before they reach the eardrum.

• It filters out background noise from sounds.

• It regulates balance and spatial orientation.

What part of the ear is shaped like a snail shell?

• Cochlea

• Eardrum

• Auditory Canal

• Semicircular Canals