Nervous System
Ears
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1: (b) Maintenance of body balance, 2: (c) Connective tissue, 3: (a) Malleus, Incus, Stapes, 4: (c) Stapes, 5: (c) 3, 6: (b) Middle ear, 7: (a) Eustachian canal, 8: (c) Vestibular apparatus, 9: (d) Tympanum and bony ossicles, 10: (a) Tinnitus