• involuntary muscle
• sphincter ani
• smooth muscle
• anal sphincter
• musculus sphincter ani

musculus sphincter pupillae  musculus teres major  musculus sphincter urethrae  musculus sphincter ductus pancreatici  musculus sphincter vesicae  musculus sternocleidomastoideus  musculus sphincter pylori  musculus teres minor  musculus sphincter ductus choledochi  musculus temporalis