The Middle Ear

Auditory Tube

  • Slit-shaped tube which is lined with pseudostratified columnar epithelium
  • At its origin it is surrounded by bone which is then replaced with a J-shape cartilage ring
  • Cartilage is partly hyaline and partly elastic
  • Mixed glands and lymph follicles are found in the lamina propria
A very low magnification of the auditory canal (Eustachian canal) demonstrating the different structures.

Fig 039-001
Fig. 21.23 Auditory (Eustachian) canal

Young and Heath p.397
Middle ear is lined by cuboidal epithelium and contains the malleus, incus and stapes. These ossicles are joined to each other by means of synovial joints.


© maart 2001 - julie 2007 marius loots