File:Human upper limb mri-01.jpg

Human upper limb Micro-MR

GA 8 week

a Sagittal T2w image of the humerus of an 8-week GA specimen demonstrates initial ossification within the central part of the diaphysis (arrow). Chondrified ribs (short arrow).

b Coronal T2w image of the forearm of the same specimen as in a) demonstrates small ossification centers in the central parts of the radius and ulna (arrow). The carpal (dotted white arrow) and metacarpal bones (dotted black arrow) are already visible as precartilage states.

GA 9 week

c Coronal T2w image of a 9-week GA specimen shows increased size of the ossification centers in humerus (white arrowhead) and radius (black arrow). The carpal and metacarpal bones demonstrate progressive chondrification and appear hypointense compared to the 8-week GA specimen.

Links: Limb Development

Reference

<pubmed>27316469</pubmed>

Copyright

© 2016 The Author(s). Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

Fig. 1 PMID added to original figure.

Cite this page: Hill, M.A. (2024, April 23) Embryology Human upper limb mri-01.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Human_upper_limb_mri-01.jpg

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