The words contained in this file might help you see if this file matches what you are looking for:

...Digestion phases include ingestion movement mechanical and chemical absorption elimination types physical chew tear grind mash mix enzymatic reactions to improve of carbohydrates proteins lipids digestive system organization gastrointestinal gl tract tube within a direct link path between organs structures mouth pharynx esophagus stomach small intestine large rectum teeth mechanically epiglottis is flap like break down food into structure at the back pieces tongue throat that closes mixes with saliva over trachea contains amylase preventing from which helps entering it located starch in approximately cm long functions secrete mucus moves using muscle called peristalsis if acid gets here s heartburn video...