Following are the three types of muscles:
(i) Striated muscles: They are located in the limbs, body wall, face, neck, etc. They also form in tongue, pharynx, diaphragm, and upper part of oesophagus as visceral striated muscles.
(ii) Smooth muscles: They are found in the walls of the hollow visceral organs except in heart and are called as visceral muscles. They form in alimentary canal, ducts of glands, urogenital ducts, blood vessels, bronchi, iris of eye, etc.
(iii) Cardiac muscles: They are located in the walls of the heart.