Structure of Skeletal Muscle. A whole skeletal muscle is considered an organ of the muscular system. Each organ or muscle consists of skeletal muscle tissue, connective tissue, nerve tissue, and blood or vascular tissue.Skeletal muscles vary considerably in size, shape, and arrangement of fibers.tructure of Skeletal Muscle. A whole skeletal muscle is considered an organ of the muscular system. Each organ or muscle consists of skeletal muscle tissue, connective tissue, nerve tissue, and blood or vascular tissue.
Des Moines /dÉ¨ËmÉÉªn/ is the capital and the most populous city in the U.S. state of Iowa. It is also the county seat of Polk County. A small portion of the city extends into Warren County. It was incorporated on September 22, 1851, as Fort Des Moines which was shortened to Des Moines in 1857.
Polk County, Iowa. Polk County is a county in the U.S. state of Iowa. As of the 2010 census, the population was 430,640, making it Iowa's most populous county. The county seat is Des Moines, which is also the capital city of Iowa. Polk County is included the Des MoinesâWest Des Moines, IA Metropolitan Statistical Area.