24/ the auditory system Flashcards
1
Q
frequency def
A
- number of compressed or rarefied patches of air that pass by our ears each second
- hertz , Hz
2
Q
intensity/amplitude
A
- air pressure dif between peaks and troughs
- decibels, dB - logarithmic scale
3
Q
human hearing range
A
20 Hz - 20,000 Hz
4
Q
outer ear anatomy
A
- pinna - involved in ability to locate sounds in the vertical plane
- external auditory canal
5
Q
middle ear anatomy
A
- ossicles: malleus, incus, staples (touching oval window)
- tympanic membrane: ear drum. transfer sound from middle ear to inner ear, moves back and forward, fluid up and down
6
Q
inner ear anatomy
A
cochlea
7
Q
A
