Bone marrow is a spongy tissue found inside some of your bones. Your body uses it to make white blood cells, red blood cells, and platelets. Bone marrow is the soft tissue in your bones that makes and ...

Bone marrow is the deep, interior portion of your bone. Your bone marrow, which has a spongy consistency, fills the cavities inside your bones and produces blood cells. Healthy bone marrow constantly ...

Red blood cells carry oxygen from the lungs to every other organ, and blood-forming stem cells must make about 200 billion new red blood cells each day to keep the oxygen flowing. For many years, ...