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4 Οκτ 2019 · Spongy bone, also known as cancellous bone or trabecular bone, is a very porous type of bone found in animals. It is highly vascularized and contains red bone marrow. Spongy bone is usually located at the ends of the long bones (the epiphyses), with the harder compact bone surrounding it.
The osteocytes in spongy bone are nourished by blood vessels of the periosteum that penetrate spongy bone and blood that circulates in the marrow cavities. As the blood passes through the marrow cavities, it is collected by veins, which then pass out of the bone through the foramina.
Bone marrow is a semi-solid tissue found within the spongy (also known as cancellous) portions of bones. [2] In birds and mammals, bone marrow is the primary site of new blood cell production (or haematopoiesis). [3] It is composed of hematopoietic cells, marrow adipose tissue, and supportive stromal cells.
27 Ιουλ 2024 · Spongy bone, also known as cancellous or trabecular bone, is a lighter, less dense type of bone tissue found within the interior of bones. It has a porous, honeycomb-like structure composed of trabeculae, which are thin rods and plates of bone that form a meshwork.
21 Νοε 2023 · Spongy bone, also known as cancellous bone, is composed of a lattice-like arrangement of osteocytes known as trabeculae. Trabeculae form a mesh-like network of bony spicules of varying size that are aligned along regions of biomechanical stress.
In this chapter, you will learn that the bone matrix is primarily composed of calcium and phosphate ions in combination with collagen fibers. These calcium phosphate salts crystalize, imparting bone with hardness but also serving as a storage depot for these ions.
The osteocytes in spongy bone are nourished by blood vessels of the periosteum that penetrate spongy bone and blood that circulates in the marrow cavities. As the blood passes through the marrow cavities, it is collected by veins, which then pass out of the bone through the foramina.
