Magnified Model of Smooth Muscle Tissue

A magnification of approximately 10,000 times shows the ultra-structure of a segment of smooth muscle. Smooth muscle is a general term for non-striated muscle, which is regarded as a muscle that is more primitive than striated muscle. Smooth muscle is widely distributed as the somatic muscle of invertebrates. In addition to the cardiac muscle in vertebrates, most visceral muscles are also composed of smooth muscle.