The cochlear modiolus is a conical-shaped structure that consists of spongy (porous) bone located in the center of the cochlea which contains the spiral ganglion.

The spiral lamina projects from the modiolus.

Abnormality of the modiolus results in sensorineural hearing loss.

History and etymology

Modiolus is a latin word that means 'hub of a wheel'.

See also

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Article information

rID: 55256
System: Head & Neck
Section: Anatomy
Synonyms or Alternate Spellings:
  • Cochlear modiolus

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Cases and figures

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    Figure 1: modiolus (CT)
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