Eli5: How do bones and other organs know what shapes to grown into?

Question

Eli5: How do bones and other organs know what shapes to grown into?

In: 3675

Answer 1

Maybe see bone expert can ELI5 too. coworker had a broken elbow then later one piece of the elbow never stopped growing so he said he had to get it lasered off or something periodically. (no idea how that works cuz doesn’t laser burn your flesh too to get to the bone?)

Also I’m amazed at how the body knows to heal. I broke my collar bone and got a plate put in. Every few weeks I went back to my surgeon and we could see my bones fusing together in the x rays.