Medullary cavity: Difference between revisions
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The '''medullary cavity''' (''medulla'', innermost part) is the central cavity of [[bone]] shafts where red [[bone marrow]] and/or yellow bone marrow ([[adipose]] tissue) is stored; hence, the medullary cavity is also known as the marrow cavity. Located in the main shaft of a long bone ([[diaphysis]]) (consisting mostly of [[compact bone]]), the medullary cavity has walls composed of [[spongy bone]] (cancellous bone) and is lined with a thin, vascular membrane ([[endosteum]]). However, the medullary cavity is the area inside any bone (long, flat, etc.) that holds the bone marrow.<ref>Martini F. |
The '''medullary cavity''' (''medulla'', innermost part) is the central cavity of [[bone]] shafts where red [[bone marrow]] and/or yellow bone marrow ([[adipose]] tissue) is stored; hence, the medullary cavity is also known as the marrow cavity. Located in the main shaft of a long bone ([[diaphysis]]) (consisting mostly of [[compact bone]]), the medullary cavity has walls composed of [[spongy bone]] (cancellous bone) and is lined with a thin, vascular membrane ([[endosteum]]). However, the medullary cavity is the area inside any bone (long, flat, etc.) that holds the bone marrow.<ref>{{cite book |last=Martini |first=F. |last2=Nath |first2=J. L. |year=2009 |title=Fundamentals of Anatomy and Physiology |edition=8th |location=San Francisco, CA |publisher=Pearson Education |isbn=978-0-321-50589-7 }}</ref> |
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This area is involved in the formation of [[red blood cells]] and [[white blood cells]], and the [[calcium]] supply for bird [[eggshell]]s. |
This area is involved in the formation of [[red blood cells]] and [[white blood cells]], and the [[calcium]] supply for bird [[eggshell]]s. |
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Revision as of 17:15, 2 June 2018
| Medullary Cavity | |
|---|---|
 A long bone, with medullary cavity labeled near center. | |
| Details | |
| Identifiers | |
| Latin | cavitas medullaris |
| TA98 | A02.0.00.037 |
| TA2 | 386 |
| FMA | 83698 |
| Anatomical terminology | |
The medullary cavity (medulla, innermost part) is the central cavity of bone shafts where red bone marrow and/or yellow bone marrow (adipose tissue) is stored; hence, the medullary cavity is also known as the marrow cavity. Located in the main shaft of a long bone (diaphysis) (consisting mostly of compact bone), the medullary cavity has walls composed of spongy bone (cancellous bone) and is lined with a thin, vascular membrane (endosteum). However, the medullary cavity is the area inside any bone (long, flat, etc.) that holds the bone marrow.[1]
This area is involved in the formation of red blood cells and white blood cells, and the calcium supply for bird eggshells.
Intramedullary is a medical term meaning the inside of a bone. Examples include intramedullary rods used to treat bone fractures in orthopedic surgery and intramedullary tumors occurring in some forms of cancer or benign tumors such as an enchondroma.
References
- ^ Martini, F.; Nath, J. L. (2009). Fundamentals of Anatomy and Physiology (8th ed.). San Francisco, CA: Pearson Education. ISBN 978-0-321-50589-7.
External links
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