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.
Structure of a Typical Long Bone Long bones have a tubular bone shaft, consisting of a bone collar surrounding a hollow medullary cavity, which is filled with yellow bone marrow in adults. Epiphyses are at the ends of the bone, and consist of internal spongy bone covered by an outer layer of compact bone.The epiphyseal line is located between the epiphyses and diaphysis, and is a remnant of the epiphyseal plate. The external surface of the bone is covered by the periosteum.The internal surface of the bone is lined by a connective tissue membrane called the endosteum.piphyses are at the ends of the bone, and consist of internal spongy bone covered by an outer layer of compact bone. The epiphyseal line is located between the epiphyses and diaphysis, and is a remnant of the epiphyseal plate. The external surface of the bone is covered by the periosteum.