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Ear Structures
BIO 208: A&P - Lab: Chap 8, Ear Structures and Functions
| Term | Definition |
|---|---|
| Pinna | Collects sound waves |
| External Auditory Canal | Directs sound to the Tympanic Membrane |
| Tympanic Membrane | Eardrum. Very small changes in pressure vibrates the membrane |
| Malleus | When Tympanic Membrane moves the Malleus |
| Incus | Middle ear bone |
| Stapes | Connected to the Cochlea |
| Oval Window | Membrane |
| Cochlea | Has hair cells and fluid called endolymph |
| Round Window | Another membrane that lets the fluid move |
| Vestibularcochlear Nerve | Signals from Cochlea to the brain |
| Semicircular Canals | Important in balance |
| Auditory Tube | Connects ear to throat, it equals out the air pressure |