Processes
Mechanically or Chemically breaking down food
Digestion
Innermost layer of GI tract
mucosa
Site for ingestion
Mouth
Enzyme in the mouth responsible for breaking polysaccharides into disaccharides
Salivary amylase
Taking food in through the mouth
Ingestion
Layer of GI tract responsible for peristalsis
Muscularis
Dual passageway for air, food, and liquid
Pharyx
Which enzyme is responsible for breaking down fats into fatty acids and glycerol
Lipase
Movement of materials across the GI tract wall
Absorption
Layer of GI tract that contains buffer-secreting exocrine glands
Submucosa
Modified portion of GI tract that contains gastric pits
Stomach
Enzyme responsible for breaking proteins into polypeptides in the stomach
Pepsin
Voluntary or involuntary movement of food through the GI tract
Propulsion
Main function is water absorption
Large intestine
Intestine directly associated with the stomach
Small intestine
Intestinal enzyme responsible for breaking oligosaccharides into monosaccharides
Maltase
OR
Sucrase
OR
Lactase
Expulsion of undigested food and waste
Defecation
Layer that forms the messentary
Serosa
Intestine that houses microbiota such as fungi, bacteria
Large intestine
Pancreatic enzyme responsible for breaking triglycerides into free fatty acids
Pancreatic lipase