3 ms·
> When presented with an intense sound stimulus, the stapedius and tensor tympani muscles of the ossicles contract.[7] The stapedius stiffens the ossicular chai
by throw0101b 3y ago
> When presented with an intense sound stimulus, the stapedius and tensor tympani muscles of the ossicles contract.[7] The stapedius stiffens the ossicular chain by pulling the stapes (stirrup) of the middle ear away from the oval window of the cochlea and the tensor tympani muscle stiffens the ossicular chain by loading the tympanic membrane when it pulls the malleus (hammer) in toward the middle ear. The reflex decreases the transmission of vibrational energy to the cochlea, where it is converted into electrical impulses to be processed by the brain.
* https://en.wikipedia.org/wiki/Acoustic_reflex https://en.wikipedia.org/wiki/Acoustic_reflex