πŸ“– what

What is the bone marrow?

Human BodyBlood

Quick Answer

Bone marrow is soft tissue inside bones that makes blood cells. It produces red blood cells, white blood cells, and platelets.

The Full Story

Bone marrow fills the cavities of many bones and exists in two main forms: red marrow and yellow marrow. Red marrow is where hematopoiesis occurs, producing blood cells from stem cells. Yellow marrow contains more fat but can revert toward red marrow if the body needs increased blood-cell production. Bone marrow is essential to oxygen transport, immunity, and clotting. Diseases such as leukemia and aplastic anemia can disrupt its function.

Key Facts

1.Inside bones
2.Makes blood cells
3.Has red and yellow forms

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Suggested video title for this topic:

"The hidden factory inside your bones"