When PCs all had parallel bus architecture, the UART's purpose was to convert bytes from the PC's parallel bus to a serial bit-stream. The cable going out of the serial port is serial and has only one wire for each direction of flow. The serial port sends out a stream of bits, one bit at a time.
Three primary characteristics of connective tissue have been described as: Have a rich supply of blood vessels. Composed of many types of cells. Great deal of noncellular, â¦ nonliving material (matrix) between the cells of connective tissue.oose Connective Tissue consists of a lot of ground substance and it has all 3 types of protein fibers. Dense Connective Tissue on the other hand has little ground substance, â¦ few cells, and although it has most protein fibers it mainly consists of collagen fibers.
The ground substance acts as a fluid matrix that suspends the cells and fibers within the particular connective tissue type. Connective tissue fibers and matrix are synthesized by specialized cells called fibroblasts. There are three main groups of connective tissues: loose connective tissue, dense connective tissue, and specialized connective tissue. Loose Connective Tissue. In vertebrates, the most common type of connective tissue is loose connective tissue. It holds organs in place and attaches epithelial tissue to other underlying tissues. Loose connective tissue is named based on the weave and type of its constituent fibers. There are three main types: Collagenous fibers are made of collagen and consist of bundles of fibrils that are coils of collagen molecules.