| A | B |
|---|
| pinna | auricle |
| Eustachian tube | connects middle ear to nasopharynx |
| 1 inch canal connects auricle to eardrum | external auditory canal |
| ear wax is produced by | ceruminous glands |
| tiny hair in ear canal | conduct sound waves to tympanic membrane |
| ossicles | smallest bones in body located in middle ear |
| malleus | first bone in middle ear |
| incus | second bone in middle ear |
| stapes | third bone in middle ear |
| allows ear to adjust to air pressure changes, as when flying | auditory tube |
| never put anything smaller than this in your ear | elbow! |
| auricle is composed of this type of tissue | connective |
| middle ear should contain _______, rather than fluid | air |
| oval window | point at which stapes attached to inner ear |
| inner ear consists of 3 spaces in temporal bone called the | bony labyrinth (maze) |
| area adjacent to oval window in inner ear | vestibule, between cochlea & semicircular canals |
| snail-shaped organ of hearing in inner ear | cochlea |
| hair cells in cochlea change sound to nerve impulse | organ of Corti |
| half-circle shaped organ of inner ear responsible for balance & equilibrium | semicircular canals |
| nerve impulse from semicircular canals sent along this nerve to brain | vestibular nerve |
| angle of eustachian in infants | horizontal |
| angle of auditory tube in adults | more vertical than child |
| skull bone containing structures of ear | temporal bone |
| URIs in children often spread to | middle ear along path of Eustachian tube |
| use of otoscope allows exam of | tympanic membrane |
