is hard and dense to provide the structure and protection the body needs. However, bones’ inner layer, known as spongy bone, is softer and porous – filled with tiny holes – to allow space for the ...

bones contain a spongy inner layer that absorbs shock so bones don't break during high-impact activities. Teeth are the hardest substance in the human body—even harder than bones—making them ...

(Credit: iStock/Getty Images) Bone marrow is the soft, spongy tissue in the middle of ... In some cases, it goes away on its own. When your body fights a bone infection (your doctor may call ...

the spongy tissue inside bones. It's usually caused by a gene mutation. Your bone marrow makes red blood cells, white blood cells, and platelets. Normally, your body controls how many of each kind ...

Other symptoms depend on where the neuroblastoma starts in the body and whether it is just in one place ... But you can also have symptoms that are vague such as: Bone marrow is the spongy substance ...