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].
Compact bones are also known as cortical bones. Spongy bones are also known as cancellous bones. Compact and spongy bones are the two main types of osseous tissues. Compact bones are made up of osteons. Osteons are also called Haversian systems. These osteons make the structure of compact bones.pongy bones are also known as cancellous bones. Compact and spongy bones are the two main types of osseous tissues. Compact bones are made up of osteons. Osteons are also called Haversian systems. These osteons make the structure of compact bones.