Ear Structures and Functions

What part of the ear sends signals to the brain?

• optic nerve
• ear canal
• auditory nerve
• middle ear

Which part of the ear contains tiny bones called the hammer, anvil, and stirrup?

• middle ear
• outer ear
• inner ear
• eardrum

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

• eardrum
• auditory nerve
• cochlea
• anvil

What happens to the eardrum when sound hits, causing transmission of sound to the inner ear?

• it opens
• it grows hair
• it refracts the sound
• it vibrates

Tags

NGSS.MS-PS4-2

Which part of the ear acts as a funnel?

• middle ear
• outer ear
• inner ear
• cochlea

In which part of the ear is sound changed into electrical signals which are then sent to the brain?

• outer ear
• middle ear
• inner ear
• hammer

In what part of the ear can damage occur to hair cells and nerve endings causing deafness?

• cochlea
• outer ear
• stirrup
• ear canal

Which part of the ear acts as the sound collector?

• outer ear
• ear canal
• middle ear
• inner ear

What happens in the inner ear? 

• Sound waves are captured.
• Sound waves move deeper into the ear. 
• Sound waves are reflected.
• Sound waves are converted into nerve impulses.

Tags

NGSS.MS-LS1-8

NGSS.MS-PS4-2

Where does HEARING (interpreting the nerve impulses) take place?

• outer ear
• middle ear
• inner ear
• brain