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.
Spongy bone (cancellous bone) is in shorter, flatter bones, and at the ends of long bones. It has more blood vessels and usually contains bone marrow, where red blood cells are produced.pongy Bone has more surface area, but it is weaker and not as  dense as compact bone.    Compact Bone is the tough outer layer of bone while spongy bone is  the poro â¦ us bone where the red and yellow marrow is.    Spongy is softer bone, with holes in it. It is found inside the  bone.