Humans have three different kinds of muscle: 1  Skeletal muscle is attached to bone, mostly in the legs, arms, abdomen, chest, neck, and face. Skeletal muscles are called striated because they are made up of fibers that have horizontal stripes when viewed under a microscope. These muscles hold the skeleton together, give the body shape, and help it with everyday movements (known as voluntary muscles because you can control their movement). They can contract (shorten or tighten) quickly and powerfully, but they tire easily and have to rest between workouts.
Cancer cells have a number of abnormal characteristics that prevent them from functioning in the same manner as normal cells. They divide repeatedly and form tumors in the place of origin and in other parts of the body.Cancer is actually over a hundred different diseases.ancer Cells Lack Differentiation Cancer cells are nonspecialized and do not contribute to the functioning of a body part. Cancer Cells Have Abnormal Nuclei The nuclei of cancer cells are enlarged and may contain an abnormal number of chromosomes.
Changes in Physical Properties of Cancer Cells. The changes in cell behavior that occur as cancer develops are, in part, dependent on changes in physical properties of the cells. Some of the changes have been identified and may be used to identify cancer cells.Tumor cells display a characteristic set of features that distinguish them from normal cells.These traits allow the individual cells to form a tumor mass and eventually to metastasize to other parts of the body.hanges in Physical Properties of Cancer Cells. The changes in cell behavior that occur as cancer develops are, in part, dependent on changes in physical properties of the cells. Some of the changes have been identified and may be used to identify cancer cells.