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Appendix (100X)

Microimage
Image copyright: University of Oslo, CC BY-NC-ND 4.0. (Tissue stain: H+E).

This cross section og the tunica muscularis shows the two main layers beautifully:

  • the longitudinal layer most peripherally (fibers cut across)
  • the circular layer (fibers cut perpendicularly)

Further inwards you can see the submucosa. The outer surface of the appendix facing the abdominal cavity is covered by the tunica serosa.

Published December 25th 2018, updated September 26th 2021.