Digestive system Flashcards
(17 cards)
What are the 4 stages of food processing?
Ingestion, digestion, absorption, ejection
Ingestion
Taking nutrients into the body
Digestion
Breaking down macromolecules into simple organic molecules using chemical and physical means
Absorption
Absorbing nutrients from the small intestine into the blood stream
Ejection
Elimination of waste from the body
What are the 2 types of digestion?
Mechanical and chemical
Digestive tract
mouth, epiglottis, esophagus, stomach
What does your stomach produce for digesting food?
Hydrochloric acid (HCL) and enzymes
Small intestine
absorbs nutrients
What does the mesentery do?
holds intestine together
Duodenum
First part of the small intestine
Jejunum
Second part of the small intestine
Ileum
Third part of the small intestine
Liver
-holds 13% of your blood
-blood leaving intestine and stomach goes to the liver
-produces bile (stored in the gall bladder)
Pancreas
-produces enzymes
-controls the amount of sugar the blood has
Large intestine
re-absorbs water, absorbs vitamins
Peristalsis
Muscular contraction to move food