This is a stained cross section of spongy bone from a human fetus. The spongy bone is blue (1). You can also see the connective tissue between the bones in light blue and gold (2). The outer layers of ...

Despite their solid appearance, bones contain a spongy inner layer that ... They contain two types of tissue that help to ensure strength: Compact bone: Also called "cortical bone," compact ...

Myelofibrosis is a rare cancer that affects your bone marrow, the spongy tissue inside some of your bones. In a healthy person, stem cells in the bone marrow make the red blood cells, white blood ...