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 is found mostly at the ends of bones and joints. About 20% of the bone in your body is spongy. Unlike compact bone that is mostly solid, spongy bone is full of open sections called pores. If you were to look at it in under a microscope, it would look a lot like your kitchen sponge.one marrow. The inside of your bones are filled with a soft tissue called marrow. There are two types of bone marrow: red and yellow. Red bone marrow is where all new red blood cells, white blood cells, and platelets are made.