Once Upon a Time: Life Season 1 Episode 4 The Bone Marrow
- October 4, 1987
- 25 min
Red blood cells, the body’s police force, are created in the bone marrow but sometimes, the factory breaks down and wayward policemen come out. Uh oh!
Red blood cells, the body’s police force, are created in the bone marrow but sometimes, the factory breaks down and wayward policemen come out. Uh oh!