Create an account
Oval window- Superior, stapes rests on it
Round window- Inferior
Pharynogotympanic (auditor) tube, or Eustachain tube- Connects with nasopharynx
Made from petrous portion of temporal lobe, filled with perilymph, consists of: cochlea, 3 semicircular canals, vestibule
Filled with endolymph, consists of: cochlear duct (w/in cochlea), 3 semicircular ducts, utricle and saccule
Bony upper scala vestibuli and lower scala tympani: filled with perilymph. Middle membranous scala media or cochlear duct contains Organ of Corti; filled with endolymph. Upper vestibular membrane and lower basilar membrane which supports Organ of Corti
Organ of Corti
Rests upon basilar membrane, has supporting cells, hair cells (inner and outer), tectorial membrane on top of hairs, cochlear branch of vestibulocochlear nerve cranial nerve VIII
Physiology of Hearing
Passage of sound waves
Pressure waves in cochlea
Movement of hairs in Organ of Corti
Depolarization and passage of impulse
High frequency sound-stimulate hair cells near oval window; low frequency near apex
Please allow access to your computer’s microphone to use Voice Recording.
Having trouble? Click here for help.
We can’t access your microphone!
Click the icon above to update your browser permissions and try again
Reload the page to try again!Reload
Press Cmd-0 to reset your zoom
Press Ctrl-0 to reset your zoom
It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.
Please upgrade Flash or install Chrome
to use Voice Recording.
For more help, see our troubleshooting page.
Your microphone is muted
For help fixing this issue, see this FAQ.
Star this term
You can study starred terms together