Sound and Equilibrium

What is the basic answer to 'What do we perceive as sound?'

• Vibrations in the air that beat against the eardrum

• waves that travel through the air

• Things produced by musical instruments

• A form of energy

What is the main function of the pinna or auricle?

• To catch sound waves and pass them deeper into the ear

• To amplify sound waves

• To convert sound waves into electrical impulses

• To maintain equilibrium

What is the role of the middle ear?

• To amplify sound waves

• To convert sound waves into electrical impulses

• To maintain equilibrium

• To detect different frequencies of sound

What is the purpose of the auditory ossicles?

• To conduct eardrum vibrations to the inner ear

• To amplify sound waves

• To convert sound waves into electrical impulses

• To maintain equilibrium

What is the function of the cochlea?

• To turn physical vibrations into electrical impulses

• To amplify sound waves

• To convert sound waves into electrical impulses

• To maintain equilibrium

How does the basilar membrane in the cochlea help with hearing?

• Different parts of the membrane vibrate based on the pitch of the sound

• It amplifies sound waves

• It converts sound waves into electrical impulses

• It maintains equilibrium

What is the role of the organ of corti?

• To contain sensory cells and nerve cells that transduce sound into electrical impulses

• To amplify sound waves

• To convert sound waves into electrical impulses

• To maintain equilibrium

How does the brain interpret the pitch of a sound?

• Based on the location of the hair cells that are being triggered

• Based on the frequency of the action potentials

• Based on the amplitude of the sound waves

• Based on the duration of the sound

What is the function of the vestibular apparatus?

• To help maintain balance and detect head movements

• To amplify sound waves

• To convert sound waves into electrical impulses

• To maintain equilibrium

Why do we get motion sickness?

• Due to a sensory conflict between the vestibular senses and other sensory receptors

• Due to the movement of fluid in the cochlea

• Due to a malfunction in the auditory ossicles

• Due to a lack of equilibrium