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.ach skeletal muscle fiber is a single cylindrical muscle cell. An individual skeletal muscle may be made up of hundreds, or even thousands, of muscle fibers bundled together and wrapped in a connective tissue covering. Each muscle is surrounded by a connective tissue sheath called the epimysium.
Prophase is a phase of mitosis in which the nuclear membrane of the cell begins to dissapear and the mitotic spindle becomes visible under a microscope. This question is archived.
DNA Is Condensed in What Phases? By Erin Watson-Price; Updated April 24, 2017 The DNA is condensed into visible chromosomes in the first phase of mitosis, known as prophase. All cells, whether plant or animal, undergo mitosis in order to make new cells. In order to ensure that the daughter cells contain the exact same genetic information as their progenitor, the DNA contained in the nucleus of the cell is duplicated just before mitosis begins.