- Spongy bone is a the connection of the trabeculae. The trabeculae are only a few cell layers thick. The spaces between the trabeculae contain red or yellow marrow, depending on a person's age and on the bone.
- Compact bone is one of the two types of osseous tissue that form bones.
- Periosteum membrane that covers the surface of the bone.
- Red blood cells, platelets and most white blood cells arise in red marrow
- White blood cells develop in yellow marrow.