Sound travels through the outer ear to the middle ear, which is bounded on its exterior by the what membrane?

• Correct Answer: tympanic
• mucous
• cutaneous
• serous

Explanation: Figure 36.13 Sound travels through the outer ear to the middle ear, which is bounded on its exterior by the tympanic membrane. The middle ear contains three bones called ossicles that transfer the sound wave to the oval window, the exterior boundary of the inner ear. The organ of Corti, which is the organ of sound transduction, lies inside the cochlea. (credit: modification of work by Lars Chittka, Axel Brockmann).

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