First, a definition. Steaks are basically any piece of meat that falls under the category of fast-cooking cutsâcuts that are low enough in connective tissue that they don't require the long cooking times that slow-cooking cuts require. The difference between a steak and roast essentially comes down to size.
Medical Definition of ORBICULARIS ORIS. : a muscle made up of several layers of fibers passing in different directions that encircles the mouth and controls most movements of the lips (as compressing, closing, or pursing movements).edical Definition of ORBICULARIS ORIS. : a muscle made up of several layers of fibers passing in different directions that encircles the mouth and controls most movements of the lips (as compressing, closing, or pursing movements).
Orbicularis Oculi. Orbicularis means circular muscle and oculi means eye. This is a circular (sphincter) muscle that goes around the eye. Fibers anchor the frontal bone and maxillary bone and inserts into the eyelid so that when it contracts it closes the eye.he origin of this is the body of the mandible and the insertion is the skin/muscle of the lower lip. Note the triangularis/depressor anguli oris insertion is at the corner of the mouth while the depressor labii inferioris is more medial.