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| Q. |
Besides ear ossicles, the cavity of the middle ear in humans contains - |
| A. | air |
| B. | endolymph |
| C. | perilymph |
| D. | otoconia |
| Answer» A. air | |
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Explanation: The hollow space of the middle ear has also been called the tympanic cavity. It is an irregular, laterally compressed space within the temporal bone. It is 44(filled with air, which is conveyed to it from the nasal part of the pharynx through the auditory tube. The middle ear contains three tiny bones known as the ossicles: malleus, incur, and stapes. |
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