Spongy bone tissue does not contain osteons. Instead, it consists of trabeculae, which are lamellae that are arranged as rods or plates. Red bone marrow is found between the trabuculae. Blood vessels within this tissue deliver nutrients to osteocytes and remove waste.

Do trabeculae have osteons?

Evidence is provided that osteons are present in numerous spongy trabeculae. Osteon formation is strictly related to the trabecular thickness so that the distance of the osteocytes from filtering surfaces does not exceed the critical value of 230 μm (in the mastoid).

What type of bone contains osteons?

Compact bone consists of closely packed osteons or haversian systems. The osteon consists of a central canal called the osteonic (haversian) canal, which is surrounded by concentric rings (lamellae) of matrix.