Circular muscles occur in both the smooth muscles and the skeletal muscles in the human body. In smooth muscles they form sphincters in the gastrointestinal tract and in the urinary tract. The skeletal muscles around the eyes and lips are called Orbicularis Oculi and Orbicularis oris, respectively.
circular muscle
Event chain map from simplest to complex: small intestine, circular muscle cell, human, and digestive system
batuta
Diaphragm
Outer = longitudinal smooth muscle Middle= circular smooth muscle Innermost= longitudinal smooth muscle
The Ciliary Muscle is a circular ring of smooth muscle attached to the lens of the suspensory ligaments.
spincter +0
between the circular and longitudinal muscle layers
It's the heart
The main muscle in the bladder is called the Detrusor muscle (which is a smooth muscle). it is circular.
Your orbicularis oris is sometimes known as the kissing muscle. It is a circular muscle that closes your mouth and puckers your lips when it contracts.
oculomotor