Digestion system

Digestion is the process toof convertconverting large and complex molecules into simpler forms,forms, which isare small molecules that isare easier to be digesteddigest by the human body. 

The functionpurpose of digestionthe digestive system: to bring essential nutrients into the internal environment so that they are available to each cell of the body
Mechanisms of Digestion:
Ingestion—food is totaken absorbin
Digestion—breakdown essentialof chemicalscomplex nutrients into simple nutrients
Motility -of gastrointestinal (GI) wall—physically breaks down large chunks of food material and biologicalmoves factorsfood fromalong the foodtract
Secretion and-of convertdigestive themenzymes allows chemical digestion
Absorption—movement of nutrients through the GI mucosa into energy.the internal environment
Elimination—excretion of material that is not absorbed
Regulation—coordination of the various functions of the digestive system