File:Lineback1920 fig04-5.jpg

From Embryology

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Cross-section of the colon of a human fetus

Fig. 4. Cross-section of the colon of a human fetus 52 mm. CR. length.

Showing a well-defined tenia at the mesenteric arc with a complete layer of loosely scattered fibers surrounding the tube.

Fig. 5. Cross-section of a human fetus 90 mm. CR. length.

Showing the fibers of the longitudinal muscle, loosely scattered in the 52-mm. stage, now compact, and only the mesenteric taenia present. Two enlargements are seen, one on each side of the tube, caused by the presence of blood-vessels. It will be noted that the muscle here is in no way involved.

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current08:48, 27 December 2012Thumbnail for version as of 08:48, 27 December 20121,200 × 756 (150 KB)Z8600021 (talk | contribs)