exam 3 pg 5 and 6

How does pitch relate to frequency?

• Pitch is our sense of whether a sound is “high” or “low” is determined by vibration

• Frequency affects volume, not pitch.
• Pitch is unrelated to frequency; they are independent concepts.
• Higher pitch corresponds to lower frequency.

What frequency of vibrations can the human ear detect?

• 10 Hz to 15 kHz
• 20 Hz to 20,000Hz

• 50 Hz to 25 kHz
• 5 Hz to 5 kHz

What is high pitch?

• High pitch is a sound with a low frequency.
• High pitch is a sound with a high frequency.
• High pitch refers to a loud volume of sound.
• High pitch is a type of musical instrument.

Which structure allows upper respiratory infections to spread from the throat to the tympanic

cavity?

• Auditory canal( short, horizontal)

• Pharynx ( long, horizontal)

• pharyngotympanic tube (short, horizontal)

• Nasal cavity

Which structure plays a role in equalizing pressure between the middle ear cavity and external

air pressure?

• pharyngotympanic tube (auditory tube; eustachian tube)

• Tympanic membrane
• Cochlea
• Auditory canal

What is the pathway of soundwaves from the outer ear to the brain?

• Outer ear -> Ear canal -> Cochlea -> Auditory nerve
• Outer ear -> Ear canal -> Eardrum -> Ossicles -> Cochlea -> Auditory nerve -> Brain
• Outer ear -> Ossicles -> Eardrum -> Brain
• Outer ear -> Eardrum -> Cochlea -> Brain

What do sound waves get funneled into ?

• Vocal cords
• Piano keys
• Soundproof walls
• external acoustic meatus

what sound waves vibrate?

• Sound waves can only vibrate in gases.
• tympanic membrane

• Sound waves vibrate only in vacuum.
• Sound waves do not require a medium to travel.

pressure is amplified

• Auditory ossicles

• Pressure is irrelevant in fluid dynamics.
• Pressure remains constant in hydraulic systems.
• Pressure is reduced in pneumatic systems.

What structures make up the inner ear?

• Auditory nerve, pinna, ear canal
• Eustachian tube, tympanic membrane, outer ear
• the semicircular canals, vestibule (utricle and saccule), and cochlea

• Malleus, incus, stapes