BIOB33H3 Lecture Notes - Lecture 9: Glucagon, Urethral Sphincters, Blood Proteins
Document Summary
The digestive system (based on chapter 25) The digestive tract (one continuous tube from mouth to anus) Ingestion: bringing food and liquids into the mouth. Mouth - begins the process of mechanical digestion. Esophagus - passage tube for food to enter the stomach. Small intestine - enzymatic breakdown of food absorption of nutrients into the bloodstream. Large intestine - removes solid waste reabsorbs water into the bloodstream to prevent dehydration houses bacteria that produce vitamin k for blood clotting processes. Oral cavity - teeth, tongue, mechanical and chemical breakdown of food. Salivary glands - produce an enzyme to begin digesting food. Pancreas - produces numerous enzymes that enter into the small intestine to digest food. Liver - produces bile for the emulsification of fat in the small intestine. Gallbladder - stores bile: histological organization of the digestive tract. There are four major layers of the digestive tract.