part of part of has part has part has quality cancellous bone tissue lamellar bone trabecular bone tissue substantia spongiosa ossium cancellous bone tissue substantia trabecularis ossium cancellated bone CALOHA:TS-0110 FMA:24019 trabecular bone trabecular substance substantia spongiosa MA:0002782 EMAPA:35873 one of the two types of osseous tissue that form bones. Compared to compact bone, which is the other type of osseous tissue, it has a higher surface area but is less dense, softer, weaker, and less stiff. It typically occurs at the ends of long bones, proximal to joints and within the interior of vertebrae. Cancellous bone is highly vascular and frequently contains red bone marrow where hematopoiesis, which is the production of blood cells, occurs. The primary anatomical and functional unit of cancellous bone is the trabecula. BTO:0001700 spongy bone tissue UBERON:0002483 spongy bone substantia trabecularis cancellous bone Wikipedia:Trabecular_bone Bone tissue that has a lattice-like or spongy structure; it is highly vascular and contains intercommunicating spaces filled with bone marrow. trabecular network of bone