Solve these clues to fill the grid.
- An ache localized in the middle or inner ear
- 3 Across
- An earphone that is inserted into the ear canal (plural)
- 6 Across
- A brittle transparent solid with irregular atomic structure (plural)
- 8 Across
- Electro-acoustic transducer for converting electric signals into sounds (plural)
- 9 Across
- The membrane in the ear that vibrates to sound
- 10 Across
- Any bundle of ___ fibers running to various organs and tissues of the body (plural)
- 1 Down
- A point system of writing in which patterns of raised dots represent letters and numerals
- 2 Down
- The perceptual experience of seeing
- 4 Down
- A convex lens that focuses the rays of the sun (plural)
- 5 Down
- Either of the passages in the outer ___ from the auricle to the tympanic membrane
- 7 Down
