Sci 241 Human Digestion Research Paper

366 Words2 Pages
SCI/241 THE SCIENCE OF NUTRITION January13,2012 Human Digestion How the does the digestive system works to absorbs nutrients? Digestion starts with the smell of food, it activates the salivary glands. The gland secret saliva that moistens food, it also contains a digestive enzyme called amylase that breaks down some carbohydrates before it leaves the mouth. Then the food is swallowed and goes into the lumen through the esophagus. The esophagus muscles contractions called peristalsis forces the food through the sphincter valve and into the stomach. Within the stomach is the mucosa and where the food is processed into thick liquid called chime this is made up of hormones and protein molecules that breakdown food and carry message to other
Open Document