File:Axolotl limb joints 01.jpg

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Joints in the forelimb and hind limb of the axolotl

The elbow joint was comparable to a mammalian synovial joint and lacked fibro-cellular tissue in the synovial cavity (A, B). Although the basic anatomy of the knee joint was similar to mammalian synovial joints, it differed in that the synovial space was filled with fibro-cellular tissues (C, D).

The wrist (E) and ankle (H) joints exhibited a mixed phenotype in that the synovial space between some bones was fibro-cellular, but was acellular at other articulations (arrows in E and H). The interphalangeal joints of the fingers (E) and toes (not illustrated) were fibro-cellular; whereas, the hip (G) and shoulder (not illustrated) joints were acellular.

Boxed areas in (A) and (C) are illustrated at higher magnification in (B) and (C) respectively. The conserved anatomy was confirmed by analysis of the joints in two different animals.

Tissue sections were stained with Fast Green/Safranin O/Weigert’s Iron Hematoxylin.

Scale bars in (A, C, E, G and H) = 500 µm; (B, D and F) = 200 µm. (above text from Fig. 1. legend)


Links: Axolotl Development


Reference

Lee J & Gardiner DM. (2012). Regeneration of limb joints in the axolotl (Ambystoma mexicanum). PLoS ONE , 7, e50615. PMID: 23185640 DOI.

Copyright

© 2012 Lee, Gardiner. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.


Figure 1. doi:10.1371/journal.pone.0050615.g001 Journal.pone.0050615.g001.tif (size adjusted)


Cite this page: Hill, M.A. (2024, April 22) Embryology Axolotl limb joints 01.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Axolotl_limb_joints_01.jpg

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© Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G

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current21:44, 25 November 2013Thumbnail for version as of 21:44, 25 November 20131,200 × 588 (408 KB)Z8600021 (talk | contribs)==Joints in the forelimb and hind limb of the axolotl== The elbow joint was comparable to a mammalian synovial joint and lacked fibro-cellular tissue in the synovial cavity (A, B). Although the basic anatomy of the knee joint was similar to mammalian ...

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