File:Proboscis histology.jpg

Histology of proboscis.

a) Overview of a histological section of the proboscis showing the closed circular cartilaginous wall (arrow 1) with a central canal (arrow 2) with an epithelial lining (arrow 3) supported by loose connective tissue (arrow 4) which contains blood vessels and two nerves at the posterior side (arrow 5).

b) Higher magnification of the epithelial lining of the central canal, depicting a respiratory epithelium with cilia (arrow 1) and goblet cells (arrow 2).

The head from a human fetus at 20 weeks gestation and a diagnosis of holoprosencephaly and cyclopia was investigated histologically and three-dimensionally reconstructed with CAD techniques. The cranial bones, blood vessels, nerves, eye and brain anlagen were reconstructed.

Link: http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=2709107&rendertype=figure&id=F9

Original File name: 1746-160X-5-14-9

3-D reconstruction of a human fetus with combined holoprosencephaly and cyclopia Wolfgang H Arnold and Veronika Meiselbach Head Face Med. 2009; 5: 14. Published online 2009 June 29. doi: 10.1186/1746-160X-5-14. PMCID: PMC2709107

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Head Face Med. 2009; 5: 14. Published online 2009 June 29. doi: 10.1186/1746-160X-5-14. Copyright © 2009 Arnold and Meiselbach; licensee BioMed Central Ltd.