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Ear Ch 13
structures of the ear
| Question | Answer |
|---|---|
| external structure located on both sides of the head | external ear auricle (pinna) |
| short tube that ends at the tympanic membrane | external auditory meatus (canal) |
| semitransparent membrane that separates the external auditory meatus and the middle ear cavity | middle ear tympanic membrane (eardrum) |
| equalizes air pressure on both sides | eustachian tube |
| bones of middle ear | ossicles |
| bony spaces within the temporal bone of skull | labyrinth (inner ear) |
| is snail-shaped and contains the organ of hearing | cochlea |
| help the body maintain its sense of balance | semicircular canals and vestibule |
| located in the skull bone behind the external auditory meatus | mastoid bone and cells |