Epithelia and integration in sponges.

@article{Leys2009EpitheliaAI,
  title={Epithelia and integration in sponges.},
  author={S. Leys and S. Nichols and Emily Adams},
  journal={Integrative and comparative biology},
  year={2009},
  volume={49 2},
  pages={
          167-77
        }
}
An epithelium is important for integrity, homeostasis, communication and co-ordination, and its development must have been a fundamental step in the evolution of modern metazoan body plans. [...] Key Result Electron micrographs show that adherens-type junctions are present in sponges but they can appear much slighter than equivalent junctions in other metazoans. Fine septae are seen in junctions of all sponge groups, but distinct septate junctions are only known from Calcarea.Expand
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