M9.2 Ear Anatomy and Functions

What are the main components of the ear?

• Outer Ear, Middle Ear, Inner Ear

• Outer Ear, Inner Ear, Brain

• Middle Ear, Brain, Nose

• Inner Ear, Nose, Throat

What is one of the functions of the ear?

• Detecting light

• Detecting sounds by receiving vibrations in the air

• Detecting taste

• Detecting smell

What do the three divisions of the ear do with vibrations from the air?

• Turn them into light signals

• Turn them into nerve impulses for the brain to recognize as sounds

• Turn them into taste signals

• Turn them into smell signals

What is the function of the outer ear?

• To detect light and help us balance

• To receive vibrations which cause the eardrum to vibrate

• To help us taste food

What is the function of the middle ear?

• To detect light

• To transmit vibrations from the ear drum

• To taste food

Which bones are found in the middle ear?

• Hammer, anvil and stirrup

• Anvil, Hammer, Cochlea

• Tympanic, Eustachian, Auditory

How long does the protection from the aural reflex last?

• 5 minutes

• 10 minutes

• 15 minutes

• 20 minutes

What structure in the inner ear is covered in hair-like cells?

• Semi-circular canals

• Eustachian tube

• Basilar membrane

• Auditory nerve

What is the function of the ossicles in the middle ear?

• To detect sound vibrations

• To transmit vibrations to the inner ear

• To protect against loud noises

• To refresh air in the middle ear

What does the basilar membrane react to?

• Air pressure

• Movement in fluid

• Sound waves

• Light waves