Ears Flashcards
What are composed of compression and rarefaction of air molecules
Sound waves
Define acoustical transduction
The conversion of sound waves into neural impulses in the hair cells of the inner ear
Audition is ____
The sense of hearing
What are the three main factors in audition
Frequency, intensity, and quality
What is frequency
Pitch
What is intensity
Loudness
What is quality
Timbre
The distance from the peak of one wave to the peak of the next
Wavelength
The amount of energy in a wave determined by the amplitude
Intensity
High frequency equals what pitch
High pitch
Long wavelengths create what frequency
Low
Which intensity creates loud sounds
Great amplitude
Which intensity creates soft sounds
Small amplitude
Characteristics of sound from a zither or a guitar allows the ear to distinguish between the two is an example of what
Timbre, quality
What collects sound
Pinna or outer ear
What is defined as the middle of the ear
The chamber between eardrum and cochlea containing three tiny bones (hammer, anvil, stirrup) that concentrates the vibrations of the eardrum on the cochlea window
What are the three tiny bones in the middle of the ear
The hammer, anvil, and stirrup
What is considered the inner ear
Cochlea, semicircular canals, and vestibular sacs
In order, how does sound travel through the ear
Auditory canal, tympanic membrane, hammer, anvil, stirrup, oval window, cochlea, auditory nerve
What is the coiled, bony, fluid-filled tube in the inner ear
Cochlea
What transforms sound vibration into auditory signals
Cochlea
What is the basilar membrane
Holds auditory receptors
Where are hair cells located
In cochlea
What are hair cells responsible for
Changing sound vibrations into neural impulses
