The 2010 MLB trade deadline is fast approaching, and though some big deals have already been swung, rumors of several other deals remain as deadline enthusiasm nears a fever pitch. Here, SB Nation's Jeff Sullivan answers some trade deadline FAQ to get the less familiar reader up to speed on just what's going on.
After spongy bone is formed in the diaphysis, osteoclasts break down the newly formed bone to open up the medullary cavity. The cartilage in the epiphyses continues to grow so the developing bone increases in length. Later, usually after birth, secondary ossification centers form in the epiphyses.
Running along the centre of long bones, such as your femur (thigh bone), is a cavity filled with bone marrow. Red bone marrow is a soft tissue that produces blood cells and yellow bone marrow is a store for fat. Bone can either be spongy or compact.Spongy bone is lightweight and made up of a mesh of needle-like pieces of bone with large spaces between them. Compact bone is dense and forms the outer layer of all your bones.unning along the centre of long bones, such as your femur (thigh bone), is a cavity filled with bone marrow. Red bone marrow is a soft tissue that produces blood cells and yellow bone marrow is a store for fat. Bone can either be spongy or compact.