The Digestive System

system that metabolizes(breaks down) food to be used for energy by the body

long tube with openings at the mouth and anus

what are the two types of digestion? and what is an example of both?

where food breakdown begins

forms in the back of the throat and branches into two tubes: Trachea and Esophagus

thin flap of cartilage below the tongue

where does the trachea and esophagus lead too?

pathway to the stomach

food degrades further by digestive enzymes and acids

long tube that absorbs nutrients into the bloodstream and is the major site of chemical digestion

outside of the digestive tract but produce or secrete substances for digestion

produces secretions to neutralize stomach acids and enzymes to digest carbs, fats, proteins, and nucleic acids

produces bile to help dissolve fats in the small intestine

store and concentrates bile to be release into the small intestine

finger-like projections of small intestine that absorb digested nutrients into the bloodstream

transport nutrients into blood vessels of villi

holds materials not absorbed in the small intestines

what is feces mostly made out of?

both human and bacteria benefit from relationship

neutral impact on human, benefit to bacteria

human is negatively impacted and bacteria benefits

links cognitive and emotional centers of the brainwash the gut through the ______