Library · Anatomy

Bone Marrow

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Bone marrow is the soft, spongy tissue that fills the center of many bones. Picture looking inside a bone and finding a living space full of blood vessels instead of an empty cavity.

Red marrow contains blood-forming stem cells that can become red blood cells, white blood cells, and platelets. Yellow marrow, by contrast, is made up mostly of fat.

In brief

Bone marrow is a soft, spongy, highly vascular tissue that fills the center of most bones.

Red marrow contains blood-forming stem cells that can give rise to red blood cells, white blood cells, and platelets. Yellow marrow consists mainly of fat. Red marrow therefore participates in blood cell formation, whereas yellow marrow contains mostly adipose tissue rather than blood-forming cells.

Sources (1)
  1. National Cancer InstituteDefinition of bone marrow

This page explains the topic in general terms; it does not tell anyone what treatment to follow.

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