Bone Marrow: The soft tissue filling the cavities of bones. Bone marrow exists in two types, yellow and red. Yellow marrow is found in the large cavities of large bones and consists mostly of fat cells and a few primitive blood cells. Red marrow is a hematopoietic tissue and is the site of production of erythrocytes and granular leukocytes. Bone marrow is made up of a framework of connective tissue containing branching fibers with the frame being filled with marrow cells.

Synonym: yellow marrow, red marrow, marrow.

Terms Related to Bone Marrow

• Bone Marrow Purging

  Techniques for the removal of subpopulations of cells (usually residual tumor cells) from the bone marrow ex vivo before it is infused. The purging is ...

• Bone Marrow Neoplasm

  Neoplasms located in the bone marrow. They are differentiated from neoplasms composed of bone marrow cells, such as MYELOMA. Most bone marrow neoplasms are metastatic.

• Bone Marrow Cell

  Cells contained in the bone marrow including fat cells (see ADIPOCYTES), STROMAL CELLS, MEGAKARYOCYTES, and the immediate precursors of most blood cells.

• Hematopoietic Stem Cell Purging

  Techniques for the removal of subpopulations of cells (usually residual tumor cells) from the bone marrow ex vivo before it is infused. The purging is ...

• Bone Marrow Fibrosis

  Replacement of the bone marrow by fibrous tissue, occurring in association with a myeloproliferative disorder or secondary to another, unrelated condition. (Dorland, 27th ed)

• Immunomagnetic Bead Technique

  A cell-separation technique where magnetizable microspheres or beads are first coated with monoclonal antibody, allowed to search and bind to target cells, and are then ...

• Megakaryocytic Leukemia

  Nonlymphocytic leukemia in which 20-30% of the bone marrow or peripheral blood cells are of megakaryocyte lineage. Myelofibrosis or increased bone marrow reticulin is common.

• Bone Marrow Examination

  Removal of bone marrow and evaluation of its histologic picture.

• Bone Marrow Transplantation

  The transference of bone marrow from one human or animal to another.

• Hematopoietic Stem Cell Transplantation

  The transference of stem cells from one animal or human to another (allogeneic), or within the same individual (autologous). The source for the stem cells ...