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trabeculae, bones, railroad bridges, and what not o/ this design helps to distribute the weight ♡ Ain't beautiful?


Bone marrow, SEM. Scanning electron micrograph (SEM) of bone marrow in cancellous bone tissue.

Bone tissue (imaged using a scanning electron microscope [SEM])


Cancellous bone (spongy bone) from distal human femur | 1986 Photomicrography Competition | Nikon’s Small World

Image by Professor P. Motta. This image is a false-color scanning electron micrograph (SEM) of normal human cancellous (spongy) bone. The shafts of long bones such as the femur are comprised of two types of bone of differing densities: compact bone forms the outer region, with the core formed by spongy or cancellous bone. In spongy bone the bony tissue is arranged as an open honeycomb.


The latter condition illustrates a weakened bone matrix, with decreased cortical thickness and a decrease in the number and size of the trabeculae of cancellous bone .

Compact bone, from human femur. Bone is made up of two types of tissue: the compact bone forms a shell around the spongy cancellous bone that makes up the marrow space in the centre. Compact bone provides strength and rigidity and is solid in appearance. It is composed of a layered matrix of organic substances and inorganic salts that form around an intricate network of vasculature called Haversian canals. Credit: Ivor Mason, KCL, Wellcome Images.