Z

Thanks! Yes, the inferior epigastric artery does start posterior to transversus abdominis but then at the arcuate line it penetrates the rectus sheath (which posteriorly is formed by the transversus abdominus aponeurosis superior to the arcuate line) and travels along with the rectus abdominis muscle in its sheath. The picture linked from earthslab is trying to show it within the rectus sheath (the anterior rectus sheath fascia is cut away in this picture to demonstrate this). It seems like a moot point, but is actually pretty important for surgeons! (https://www.herniaclinic.co.nz/wp-content/uploads/2015/04/Figure-2.jpg) I tried downloading from the main site but didn't see the changes yet. I'll give it another look later. I will try to work on a few things (transversalis fascia, gonadal vessels) and see how collaboration goes! It might be nice to have a discord.com channel where people can coordinate collaboration?

Awesome, thanks for your feedback. I'd love to contribute but I'm not really sure how to do version control in blender and don't want my changes to mess anything up. I took some pictures of how the vas deferens and inferior epigastric artery should be approximately on my version.