Eardrum

... nerve has the most extensive distribution in the body of all the cranial nerves, innervating structures as diverse as the external surface of the eardrum and internal abdominal organs. The root of the nerve exits the cranial cavity via the jugular foramen. Within the foramen is the superior ganglion, ...

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... I look forward to all year. As soon as we got home, I went to see my PA and she was horrified when she looked in my ears. She said that my right eardrum had BURST and the other ear was almost that bad. It took a shot of Rocephrine and two different oral antibiotics to clear up the infection. ...

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They have inner ears but no outer ear, or eardrum for that matter. They 'hear' by feeling vibrations in the ground.

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