Anatomy of the Cochlea

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Across
  1. 2. On scala vestibuli, connected to stapes footplate
  2. 4. Ions high in endolymph
  3. 7. Ions high in perilymph
  4. 9. Membrane that sits above Organ of Corti, in contact with the tallest outer hair cell stereocilia, composed of collagen and protein
  5. 10. Found inferior to the scala media
  6. 11. Spiral shaped bundle inside the modiolar core
  7. 14. Connects stereocilia; plays a role in controlling the flow of ions into the hair cell
  8. 15. Found superior to the scala media
  9. 16. Entirely enclosed in petrous temporal bone, makes 2 3/4 turns
  10. 17. Single-cell layer membrane that separates the scala media from the scala vestibuli
  11. 19. Membrane that separates the scala media from the scala tympani
  12. 20. Fluid found in scala tympani and scala vestibuli
  13. 21. Organ responsible for transduction of auditory signals
  14. 22. Meeting point of the scala vestibuli and scala tympani at the apex of the cochlea; equalizes pressure between the 2 scalae
  15. 24. Also called the cochlear duct, houses the Organ of Corti
Down
  1. 1. Fluid found in Organ of Corti - May be perilymph that has migrated through the basilar membrane
  2. 3. On lateral wall of scala media; the "battery" of the ear
  3. 5. Divides Organ of Corti from scala media, tight covering; keeps fluids separate
  4. 6. The space within the temporal bone that encases the inner ear
  5. 8. On scala tympani, bulges out as stapes pushes in which allows for cochlear fluids to move
  6. 12. Fluid found in scala media
  7. 13. The inner core of the inner ear, encased in membranes
  8. 18. Thin projections on the cochlear hair cells that respond to fluid motion; u-pattern for inner hair cells, v-pattern for outer hair cells
  9. 23. A core of temporal bone that runs up through the center of the cochlea