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].
There is spongy bone, also called trabecular or cancellous boneLess dense bone with a lattice-like structure. Also called spongy bone. , and compact bone, also called cortical boneDense, strong bone that surrounds trabecular bone tissue. Also called compact bone. (Figure 9.1 The Arrangement of Bone Tissues).t surrounds all trabecular tissue and is the only bone tissue in the shafts of long bones. Figure 9.2. The two basic tissue types of bones are trabecular and cortical. Trabecular (spongy) and cortical (compact) bone tissues differ in their microarchitecture and porosity.