digestive system Flashcards
what is mechanical digestion
breaking down food using physical forces
what is chemical digestion
breaking down food using chemical reactions
what digestion occurs in the mouth
both mechanical and chemical(saliva)
what is the tongue composed of
skeletal muscle
what digestion is teeth responsible for
mechanical
what are the 3 types of teeth
incisors, canines and molars
what is the pharynx
the region between the mouth and esophagus where the digestive and respiratory systems intersect
what is the esophagus
the pathway for food to the stomach
what is peristalsis
muscular contractions that assist in movement and mechanical breakdown
where does the esophagus end at
the lower esophageal sphincter
what is the stomach responsible for
it is responsible for some of the chemical and mechanical digestion of food
where does the stomach terminate at
the pyloric sphincter
what assists in mechanical digestion in the stomach
the smooth muscle
how is mechanical digestion performed in the stomach
by the contraction of the stomach’s muscular portion, churning the food and breaking it up into smaller portions
what comes after the pyloric sphincter
the small intestine