digestive system

digestive system   Dan immune system

Your Digestive System and How It Works The digestive system does important work for the body Food isn't in a form the body can readily use,

The digestive system ingests and digests food, absorbs released nutrients, and excretes food components that are indigestible The six activities involved in The digestive system is a series of hollow organs joined in a long, twisting tube from the mouth to the anus Inside this tube is a lining called the mucosa

ค่า ldl ปกติ The human digestive system is the means by which tissues and organs receive nutrients to function The system breaks down food, extracts nutrients from it, Definition of Digestive system Digestive system: The system of organs responsible for getting food into and out of the body and for making use of food to keep