Cancell

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Cancellous Bone

Cancellous bone (pronunciation: /ˈkænsələs boʊn/), also known as spongy bone or trabecular bone, is one of the two types of bone tissue that make up the human skeleton. The term "cancellous" is derived from the Latin word "cancelli", which means "lattice".

Structure

Cancellous bone is characterized by a spongy, honeycomb-like structure, which is highly vascular and contains red bone marrow. The structure of cancellous bone is an intricate network of trabeculae (thin, rod-like structures) that provide support and strength to the bone. The spaces within this network are filled with bone marrow, which produces blood cells.

Function

Cancellous bone is found at the ends of long bones, such as the femur and humerus, and in the inner layer of flat bones, such as the skull and pelvis. It serves several key functions, including supporting and protecting the red and yellow bone marrow, and providing a surface for the attachment of muscles. It also plays a crucial role in calcium and phosphate metabolism.

Related Terms

  • Cortical bone: The other type of bone tissue, which is dense and forms the outer layer of bones.
  • Osteoporosis: A medical condition in which the bones become brittle and fragile due to 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 and is responsible for the production of blood cells.
  • Trabeculae: The thin, rod-like structures that form the network within cancellous bone.

See Also

External links

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