FUNCTION: breaks down food to be used by the body.
Goes into blood to get all over the body.
4 STEPS: INGESTION, DIGESTIION, ABSORPTION & ELIMINATION
Mechanical- bite chew;
break down food itself
Chemical- different chemical make-up
MOUNTH- Mechanical digestion- Saliva juices help with the
teeth to crush
digestion- enzymes (protiens- speed things up)
break down foods (ie: crackers turn into sugar)
ESOPHAGUS- muscular tube from mouth to stomach
has mucus which helps food down
STOMACH- expands to hold food
of muscles to churn to do most of the
chemical- break down of proteins into amino acids
Smalll- where most of the chemical digestion takes place.
Absorption of nutrients
into the body. 6 meters long.
Large- excess water is
absorbed into blood. 1&1/2 meters long.
RECTUM- waste is compressed and wait to
leave thee body.
ANUS- where the waste leaves the body.
LIVER- poduces bile that’s than stored in the
GALLBLADDER to help break down enzymes even
within the small intestines.
Carbohydrates: 60% diet. 1st source of energy.
30% diet. Growth & repair. Meats, nuts.
Fats: 10% diet. 2nd source of energy. Oils, butter.