Anatomy of the Inner Ear

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Across
  1. 8. The scala vestibuli and scala tympani, together with the vestibule and semicircular canals are filled with this fluid, which is high in sodium and low in potassium.
  2. 9. Narrow passage where the scala tympani and scala vestibuli are connected together.
  3. 10. A structure of the bony labyrinth which contains the organ of hearing.
  4. 11. Holes in the bones that auditory nerves use to enter the spiral lamina.
  5. 13. Part of the cell that receives signals from the other cells.
  6. 14. Network of cells used by the hair cells of the organ of Corti to communicate with the brain.
  7. 16. A cavity located within the petrous portion of the human temporal bone that creates the cochlea image we often see in textbooks.
  8. 17. The narrowest end of the spiral where the coils get tighter
  9. 18. The main structure responsible for converting mechanical vibrations that enter the cochlea into neural impulses.
  10. 20. A structure of the bony labyrinth that together with the cochlea form the medial wall of the middle ear cavity.
Down
  1. 1. Houses the the vestibulocochlear (VIII) and facial (VII) nerves.
  2. 2. The widest coil of the spiral
  3. 3. Located within the cochlea as a central core of bone.
  4. 4. A spiral corkscrew -shaped bony shelf that projects from the side of the modiolus and partially divides the cochlear tunnel into sections.
  5. 5. High in potassium and very low in sodium. This fluid fills the membranous labyrinth including the scala media.
  6. 6. Part of the cell that transmits signals to other cells.
  7. 7. A structure of the bony labyrinth that together with the vestibular contains the organs of balance.
  8. 12. Located within the bony labyrinth and follows all the curves and coils of the bony labyrinth. It is also suspended within the bony labyrinth in a fluid called perilymph and attaches to the edge of the bony labyrinth along the edge of the cochlear spiral.
  9. 15. Also known as the cochlear duct or cochlear partition and it is the membranous part of the cochlea.
  10. 19. Located on the edge of the scala media and translates to the strip of vascular system.