Diagramatic section of the Left Ear. 1: Concha; 2: External canal; 3: Middle ear, crossed by the ossicles; 4: Inner ear; 5: Petrous bone; 6: External membrane of the middle ear; 7: Eustachian tube; 8: Auditory nerve.

Left Ear

Diagramatic section of the Left Ear. 1: Concha; 2: External canal; 3: Middle ear, crossed by the ossicles;…