The tissue concerned with the movement of body parts and the locomotion of animals is called muscle tissue. It is also called muscular tissue or contractile tissue. According to their structure, location, and functions, muscle tissues are classified into three groups. read more
Non striated muscle: The muscle which show no cross striations are called non striated muscles or unstriped muscles. They look smooth, hence are called smooth muscles. Their activity of these muscles are not under the control of the will of the animal, so they are known as involuntary muscles. read more
Smooth muscle is an involuntary non-striated muscle. It is divided into two subgroups; the single-unit (unitary) and multiunit smooth muscle. Within single-unit cells, the whole bundle or sheet contracts as a syncytium. read more