Cancellous bone
Cancellous Bone
Cancellous bone (pronunciation: /ˈkænsələs boʊn/), also known as trabecular bone or spongy bone, is one of the two types of bone tissue that make up the human skeleton. The other type is compact bone.
Etymology
The term "cancellous" is derived from the Latin word "cancelli", which means lattice or grating. This is in reference to the lattice-like structure of this type of bone.
Description
Cancellous bone is characterized by a spongy, honeycomb-like structure, which is highly vascular and contains red bone marrow. The spaces within this tissue are filled with marrow, which produces blood cells. This type of bone is typically found at the ends of long bones, in the inner layer of flat bones (such as the skull), and in the vertebrae.
Function
Cancellous bone serves several important functions in the body. It helps to support and protect the red and yellow bone marrow. It also provides a surface for the attachment of muscles and supports the body's weight.
Related Terms
- Osteoporosis: A medical condition in which the bones become brittle and fragile from loss of tissue, typically as a result of hormonal changes, or deficiency of calcium or vitamin D.
- Bone Marrow: The soft, spongy tissue that fills the cavities of bones. It is responsible for the production of blood cells.
- Compact Bone: Also known as cortical bone, it is one of the two types of osseous tissue that form bones. Compact bone gives bones their smooth, white, and solid appearance, and accounts for 80% of the total bone mass of an adult human skeleton.
External links
- Medical encyclopedia article on Cancellous bone
- Wikipedia's article - Cancellous bone
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