Please enable JavaScript.
Coggle requires JavaScript to display documents.
2.2 Hearing - Coggle Diagram
2.2 Hearing
-
Mechanism
3) Vibration causing oscillatory (back-and-forth) movement of the perilymph in the scala vestibuli and the scala tympani and movement of membrane :arrow_right: causing vibration in vestibular & basilar membranes
4) Vibration of basilar membrane causing the stereocilia of cochlear hair cells to contact tectorial membrane, stimulating the formation of nerve impulses by cochlear hair cells
2) Sound waves enter external acoustic meatus (external auditory canal) & strike the tympanic membrane :arrow_right: vibrate in and out same frequency :arrow_right: greater displacement of tympanic membrane than do soft sounds
5) Cochlear branch of vestibulocochlear nerve carry nerve impulse to temporal lobes, interpreting sensation.
1) Vibrations transmit to cochlear hair cells of spinal organ :arrow_right: hearing areas of the cerebrum for interpretation as sound sensations
6) Some of axons crossing over to opposite side of brain, so the hearing area in each temporal lobe interpreting nerve impulse.
-
-
-
Physiology of Auricle
-
-
-
-
-
-
7) Push the vestibular membrane back and forth :arrow_right: creating waves in the endolymph inside cochlear duct.