Stuck on a problem? Get great tutoring at an affordable price with Chegg. Click here to join and get your 1st 30 minutes Free!

Tensor muscle of tympanic membrane

From Biology-Online Dictionary
Jump to: navigation, search

tensor muscle of tympanic membrane --> tensor tympani

(Science: anatomy, muscle) origin, the cartilaginous part of the auditory (eustachian) tube and the walls of its hemi-canal just above the bony portion of the auditory tube; insertion, handle of malleus; action, draws the handle of the malleus medialward tensing the tympanic membrane to protect it from excessive vibration by loud sounds. Nerve supply, branches of trigeminal through the otic ganglion.

Synonym: musculus tensor tympani, tensor muscle of tympanic membrane, toynbee's muscle.