File:Beattie1924 fig01.jpg
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Fig. 1. The ileo-colic junction in a 40 mm human embryo
(x 150)
After the 20 mm. stage it is possible to recognise at the ileo-colic junction a definite thickening of the circular muscle layer. In embryos which have been sectioned horizontally the ileo-colic junction presents a Y-shaped appearance (fig. 1). The small limb on the left side of the Y represents the base of the caeco-appendicular anlage. The right limb represents the terminal ileum while the “leg” of the Y is the proximal colon. The angle between the small limbs can be called the ileocaecal angle while the angle between the right limb and the “leg” of the Y can be called the ileo-colic angle (fig. 1).
Reference
Beattie J. The early stages of the development of the ileo-colic sphincter. (1924) J Anat. 59: 56-59. PMID 17104039
Cite this page: Hill, M.A. (2024, April 26) Embryology Beattie1924 fig01.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Beattie1924_fig01.jpg
- © Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G
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