How does my bone marrow connect to the rest of my systems?

Question

Seeing as how it’s encased in bone and all. I was just looking at old x-rays from when I had stress fractures in my tibias and had that “hey, wait a minute” feeling. Please help!

In: 13

Answer 1

“The bone marrow’s connected to the bone shell, the bone shell’s connected to the … Uhh . . . Rest of the body”