BIOL1003 Lecture Notes - Lecture 7: Maltase, Esophagus, Duodenum

• School: University of Sydney
• Department: Biological Sciences
• Course: BIOL1003
• Professor: Osu Lilje

Document Summary

Anatomy of digestive system and its functions. Major metabolic substraits provide major nutrients for organic parts of our body: Water major constituent of all cells. Carbohydrates glucose for energy production (atp) Protein amino acids to build body"s own proteins. Fat fatty acids and glycerol to build body"s own fats. Minerals essential for normal cell function: activities of the digestive system. Ingestion of food into the mouth where mechanical and chemical digestions take place. Two processes of digestion: mechanical digestion mechanical breakdown of food (mastication) involves lips, cheeks, teeth. Occurs at different parts of the dig sys. Varies on the type of food / molecules. All ds has smooth muscles that contract and help propel food from one system to another: chemical digestion. Insert: anatomy of the digestive system. Accessary organs liver, pancreas secrete juices: the oral cavity. Saliva comes in two forms: serous and mucous. Mixture of serous (watery) and mucous fluids.