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
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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).[1][2]
This area is involved in the formation of red blood cells and white blood cells, and the calcium supply for bird eggshells. The area has been detected in fossil bones despite the fossilization process.[3]
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.
^Martini, F.; Nath, J. L. (2009). Fundamentals of Anatomy and Physiology (8th ed.). San Francisco, CA: Pearson Education. ISBN 978-0-321-50589-7.
^Tortora, Gerard J. (2022). Principles of anatomy and physiology. Wiley. ISBN 978-0-7303-9200-2. OCLC 1299321666.
^
Peterson, J. E.; Lenczewski, M. E.; Reed, P. S. (October 2010). Stepanova, Anna (ed.). "Influence of Microbial Biofilms on the Preservation of Primary Soft Tissue in Fossil and Extant Archosaurs". PLOS ONE. 5 (10): 13A. Bibcode:2010PLoSO...513334P. doi:10.1371/journal.pone.0013334. PMC 2953520. PMID 20967227.
The medullarycavity (medulla, innermost part) is the central cavity of bone shafts where red bone marrow and/or yellow bone marrow (adipose tissue) is...
Medulla All pages with titles containing MedullaryMedullarycavity, the central cavity of bone shafts Medullary ray (disambiguation) Medulla Grammatice...
deeper layer of cancellous bone (spongy bone) which contains in the medullarycavity the bone marrow. The outer shell of the long bone is made of cortical...
systemic circulation via permeable vasculature sinusoids within the medullarycavity. All types of hematopoietic cells, including both myeloid and lymphoid...
muscles and often protect internal organs. Flat bones do not have a medullarycavity because they are thin. An irregular bone is one that does not have...
marrow, which ramify in the endosteum–the vascular membrane lining the medullarycavity–and give twigs to the adjoining canals. Nutrient arteries are the most...
tissue that lines the inner surface of the bony tissue that forms the medullarycavity of long bones. This endosteal surface is usually resorbed during long...
connective tissue in the medullarycavity of the affected bone. Pain may be caused by increased pressure in the medullarycavity and the stimulation of...
type of hyaline cartilage.) Endosteum lines the inner surface of the medullarycavity of all long bones. The periosteum consists of an outer fibrous layer...
though it is classified as a long bone, the collarbone has no medullarycavity (marrow cavity) like other long bones. It is made up of spongy cancellous...
(without proximal or distal fixation), is a metal rod forced into the medullarycavity of a bone. IM nails have long been used to treat fractures of long...
Tubercle Tuberosity Eminence (anatomy) Process Condyle Epicondyle Fossa Medullarycavity Endosteum Yellow bone marrow Red bone marrow Nutrient foramen Nutrient...
intramembranous ossification. Mesenchymal stem cells within mesenchyme or the medullarycavity of a bone fracture initiate the process of intramembranous ossification...
of wrist. Posterior view. The ulna is a long bone. The long, narrow medullarycavity of the ulna is enclosed in a strong wall of cortical tissue which is...
make a collar that encircles the outside of the bone and remodels the medullarycavity on the inside. The nutrient artery enters via the nutrient foramen...
This is because after trauma, an elevated pressure in the medullarycavity (central cavity of the bone where the bone marrow are stored) causes the release...
bones, where they lead into a nutrient canal, which extends into the medullarycavity. The nutrient canal (foramen) is directed away from the growing end...
the bone. The ribs are entirely composed of dense bone and lack the medullarycavity seen in the bones of other animals. The vascular channels that penetrate...
vessels, sinuses and medullary cords that contain antibody-secreting plasma cells. There are fewer cells in the medulla. The medullary cords are cords of...
cells that present as thin-walled vessels infiltrating the marrow, medullarycavity between bone trabeculae and are usually confined to the vertebral body...
calcification of the cartilage. On the other hand, soft tissue and medullarycavity is better imaged by MRI scan. Most times, the early signs of osteosarcoma...
adults. Ewing's is highly aggressive, typically developing from the medullarycavity of a bone with cells invading the Haversian system. An immunohistochemistry...
micro-scores on the abraded surface of the cortical bone. Inside the medullarycavity from which the spongy bone was removed, the cortical bone is broken...
bones of Jonkeria display thickened bone walls and infilling of the medullarycavity with bone tissue. This is similar to the bone structure of the modern...
anemia, where there is increased hematopoiesis and enlargement of the medullarycavities of the skull. Rickets Achondroplasia Acromegaly Basal cell nevus syndrome...
Cetiosaurus by Owen. Mantell noticed that the leg bones contained a medullarycavity, a characteristic of land animals. He assigned these specimens to the...
The medullarycavities are surrounded by multiple layers of very poorly vascularized endosteal lamellar tissue, along with very large cavities near the...
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