The smooth muscle is one of the three types of muscle present in the human body and other animals.
The smooth muscle is called smooth because of its smooth appearance without any striations in its structure.
The smooth muscle is made of the spindle-shaped cells characterized by a single nucleus.
The smooth muscle cells are controlled by the autonomic nervous system and therefore is involuntary in its action.
The smooth muscle is present in the hollow organs and propels the substances through these hollow internal passages like in the alimentary canal of the digestive tract and urinary bladder.
