Bone marrow: Difference between revisions
imported>Howard C. Berkowitz No edit summary |
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| url = http://www.mayoclinic.com/health/aplastic-anemia/ds00322 | | url = http://www.mayoclinic.com/health/aplastic-anemia/ds00322 | ||
| title = Aplastic anemia | | title = Aplastic anemia | ||
| publisher = Mayo Clinic}}< | | publisher = Mayo Clinic}}</ref> for example, the marrow stops producing erythrocytes. In [[myeloproliferative disorders]]<ref>{{citation | ||
| url = http://www.cancer.gov/cancertopics/types/myeloproliferative | | url = http://www.cancer.gov/cancertopics/types/myeloproliferative | ||
| title = Myeloproliferative Disorders Home Page | | title = Myeloproliferative Disorders Home Page | ||
Latest revision as of 19:28, 25 June 2010
In biology and medicine, and the specialty of hematology, bone marrow literally is the the soft tissue filling the cavities of bones. Bone marrow exists in two types, yellow and red.[1] Red marrow is the most significant type, because it is the site of hematoepoesis: generation of erythrocytes, leukocytes and platelets from hematopoetic stem cells.
At a basic level, marrow disorders principally involve inappropriate blood cell production. In aplastic anemia,[2] for example, the marrow stops producing erythrocytes. In myeloproliferative disorders[3], such as polycythemia vera, the marrow makes excessive numbers of often abnormal blood cells.
Morpholologically, bone marrow is made up of a framework of connective tissue containing branching fibers with the frame being filled with marrow cells. The second type is yellow marrow is found in the large cavities of large bones and consists mostly of fat cells and a few primitive blood cells. [1]
Bone marrow examination
Disorders of marrow
References
- ↑ 1.0 1.1 Anonymous (2024), Bone marrow (English). Medical Subject Headings. U.S. National Library of Medicine.
- ↑ Aplastic anemia, Mayo Clinic
- ↑ Myeloproliferative Disorders Home Page, National Cancer Institute