What is the medical term meaning structure within bone?

The medical term for the structure within the bone is trabeculae. Trabeculae are thin, interconnected rods or plates of bone tissue that form a network within the cancellous (spongy) bone, giving it its characteristic porous appearance. These structures provide strength and support to the bone while allowing for the passage of blood vessels and nerves. Cancellous bone is found in the interior of long bones and the flat bones of the skull, pelvis, and spine.