Tympanic cavity鼓宣 Position: An irregular air-filled cavity locates within the temporal bone, and lies between the tympanic membrane and the lateral wall of the inner ear内耳 It contains the auditory ossicles听小骨, ligaments, muscles, vessels and nerves◼ Position: An irregular air-filled cavity locates within the temporal bone, and lies between the tympanic membrane and the lateral wall of the inner ear 内耳. • It contains the auditory ossicles听小骨, ligaments, muscles, vessels and nerves. Tympanic cavity 鼓室