What is another word for annular muscle?
Pronunciation: [ɐnjˈʊlɑː mˈʌsə͡l] (IPA) 
Annular muscle is a muscle that has a ring-shaped structure. There are a handful of synonyms for this term, one of which is circular muscle. Another synonym is sphincter muscle, which can be found in various parts of the body, including the esophagus, anus, and uterus. A third synonym for annular muscle is orbicular muscle, which is often used to describe structures around the mouth and eyes. Additionally, some sources may use the terms ring muscle or constrictor muscle to refer to the annular muscle. Regardless of the specific synonym used, all of these terms refer to a muscle that has a circular shape and helps to control the opening and closing of a particular body part.
