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ear
| Question | Answer |
|---|---|
| Tensor tympani muscle | Skeletal muscle that attaches to the ossicles; pulls the tympanic membrane medially |
| Malleus | Shaped like a hammer; set into motion by the tympanic membrane |
| Vestibule | Contains the oval window; conveys information about tilting the head and linear movement |
| Cochlea | Spiral-shaped portion of the bony labyrinth; energy from sound waves is transmitted into neural impulses |
| Auricle (Pinna) | Funnels sound waves into the ear; elastic cartilage covered in skin |
| Pharyngotympanic (Eustachian/Auditory) tube | Aka auditory tube; equalizes pressure on both sides of the tympanic membrane; normally closed |
| Incus | Shaped like an anvil; set into motion by the malleus |
| Oval window | Boundary between the air-filled middle ear and the fluid-filled inner ear; plays a part in the conversion of mechanical waves into fluid movement |
| Ampulla | Bulb-shaped structure that contains a cluster of hair cells embedded in the cupula |
| External auditory canal (External acoustic meatus) | Slightly curved canal tunneled through the temporal bone that ends at the tympanic membrane |