the lips orbicularis oris
Liver
Describes nutrition that bypasses the GI tract
liver
Liver
to the brain
Circular muscles are called sphincters, there are many different sphincter muscles in the human body.
The stomach has the thickest walls and the strongest muscle in all the GI tract organs. : )
The GI (Gastrointestinal) tract or the Digestive Tract
The anus
GI tract, GIT, digestive tract, digestion tract, alimentary canal
the physical propulsion of food through the gastrointestinal tract (GI tract)
The function of the projections of the mucosa of the GI tract is secretions and absorption. Digestion is also aided by these projections.