Detecting Sound

What part is #1?

• Pinna

• Ear Canal

• Ear Drum

• Oval Window

What part is #2?

• Pinna

• Ear Canal

• Ear Drum

• Oval Window

What part is #3?

• Pinna

• Ear Canal

• Ear Drum

• Oval Window

auditory nerve

• part of the the inner ear responsible for helping the body keep its balance

• narrow region leading from the outside of the ear to the eardrum

• carries messages from the ear to the brain for processing

• sound enters through the outer ear and reaches the eardrum, looks and acts like a funnel

eardrum

• vibrations in the cochlea cause nerve cells to transmit signals to the brain

• attached to the eardrum, vibrates when the eardrum vibrates

• narrow region leading from the outside of the ear to the eardrum

• small, tightly stretched, drumlike membrane, sound waves make it vibrate

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

• outer ear
• middle ear
• inner ear
• brain

Tags

NGSS.MS-LS1-8

Why is sound able to travel faster through a solid than a gas?

• Gas molecules are packed tightly.
• Sound does not travel faster through a solid than a gas.
• Solid molecules are packed tightly.
• Gas molecules move slowly.

Sound does not travel in space because

• Space is too far away.
• There is no matter in space.
• Space is the final frontier
• Space has planets.

An ___________ is a sense organ containing receptors for detecting sound.

• eye
• ear
• mouth
• nose

When the sound travels into your ear, it vibrates the ___________.

• inner ear
• eardrum
• outer ear
• middle ear