Gastrointestinal Motility: Movements that mix and circulate the gastrointestinal contents and prope thern along the length of the tract Secretion: Process by which the glands associated with the gastrointestinal tract release water and substance into the tract chemically degraded to produce smaller molecules that C Digestion: Process by which food and large molecules ar can be absorbed across the wall of the gastrointestinal tract Absorption: Process by which nutrient molecules are absorbed by cell that line the gastrointestinal tract and enter the bloodstream 1111 Gastrointestinal Motility: Movements that mix and circulate the gastrointestinal contents and propel them along the length of the tract Secretion: Process by which the glands associated with the gastrointestinal tract release water and substance into the tract Digestion: Process by which food and large molecules are chemically degraded to produce smaller molecules that can be absorbed across the wall of the gastrointestinal tract. Absorption: Process by which nutrient molecules are absorbed by cell that line the gastrointestinal tract and enter the bloodstream