Exam 4: Hearing and Equilibrium

What is the primary function of the external ear?

• Amplifies sound waves

• Collects and directs sound waves

• Transmits sound waves

• Maintains equilibrium

Which part of the ear is responsible for amplifying and transmitting sound waves?

• External ear

• Inner ear

• Middle ear

• Cochlea

What sensory functions are associated with the inner ear?

• Hearing and balance

• Smell and taste

• Vision and touch

• Taste and hearing

Tags

NGSS.MS-LS1-8

What is the function of the auricle (pinna) in the external ear structure?

• It vibrates when hit by sound waves.

• It separates the external and middle ear.

• It is an air-filled canal.

• It provides protection as the outer fleshy portion of the ear.

What lines the external acoustic meatus?

• Stratified squamous epithelium (skin)

• Mucous membrane

• Cartilage

• Bone tissue

What is the role of ceruminous glands in the external ear?

• They vibrate when hit by sound waves.

• They secrete cerumen (wax) which inhibits microorganism growth.

• They separate the external and middle ear.

• They provide structural support to the ear.

What happens to the tympanic membrane when it is hit by sound waves?

• It secretes wax.

• It vibrates.

• It hardens.

• It absorbs the sound.

Tags

NGSS.MS-PS4-2

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

• Transmit sound waves to the outer ear

• Transmit vibration from the tympanic membrane towards the inner ear

• Equalize pressure with outside air

• Produce earwax

What is the role of the pharyngotympanic tube in the ear?

• Transmit sound waves to the brain

• Equalize pressure with outside air

• Produce earwax

• Transmit vibration from the tympanic membrane towards the inner ear

What is the function of the pharyngotympanic tube?

• Equalizes air pressure between the middle ear and the atmosphere

• Transports food from the mouth to the stomach

• Filters dust and pathogens from inhaled air

• Produces sound by vibrating vocal cords