The cervix, or cervix uteri, is the ring of muscle found at the base of the uterus.
It's from a Latin word meaning "ring" because it's a ring of muscle.
The Iris.
The iris.
The anal canal has a ring of muscle, called the anal sphincter
There are the Triceps that have 3 muscle bodies and there are the Deltoids that has 3 muscle bodies as well.
Yes there is the Internal and External Anal Sphincters.
The Ciliary Muscle is a circular ring of smooth muscle attached to the lens of the suspensory ligaments.
The Upper Esophageal Sphincter is a ring of skeletal muscle that controls the movement of food from pharynx to esophagus.
the tunica media consists almost entirely of smooth muscle why?
It is called cardiac muscle, or myocardium.
strap Muscle