The Democratic-Republican Party was the American political party in the 1790s of Thomas Jefferson and James Madison formed in opposition to the centralizing policies of the new Federalist party. It came to power in 1800, and dominated national and state affairs until the 1820s, when it faded away.
Spongy bone of the diaphysis is transformed into compact bone the activity of osteoclast (remove bone and widen marrow cavity). Osteoblast lay down concentric lamellae of bone making the Haversain system [structural unit of bone].
Examples arethe vertebrae and sphenoid bone.Gross anatomy of bonesEach bone contains two types of osseous tissue (bone tissue): (1) Compact bone is very denseand solid, and it is always found on the surface of the bone. (2) Spongy bone has a relativelyporous structure, and it is found in the interior of bones.keletal System: Bone Structure and Function For the next two chapters (7 and 9) we will study the skeletal system. Although the majorfeature of this system is the bones, the skeletal system also consists of cartilage, ligaments,tendons, and other structures that hold the bones together and stabilize them.