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Transcript
THE DIGESTIVE SYSTEM
Mouth
Salivary
glands
Esophagus
Liver
Gallbladder
Small
intestine
Stomach
Pancreas
Large
intestine
DIGESTIVE SYSTEM:
Structures and Functions
ORGAN NAME
FUNCTION
Mouth
Food is taken in here; mechanical and chemical digestion begins.
Salivary
Glands
Produce saliva; enzymes needed for digestion are released
Esophagus
Long narrow tube that connects the mouth to the stomach; food
is pushed down through the tube through PERISTALSIS
Stomach
Large muscle where most food digestion occurs; filled with
GASTRIC JUICES to break down food into smaller particles
Liver
Produces bile, which helps break down fats
Gall bladder
Stores bile from the liver and releases it into the small intestine.
Pancreas
Stores digestive enzymes and releases them into the small
intestine.
Small
Intestine
Absorbs nutrients through VILLI, which increase the surface area;
each villus is covered with tissue that contains MICROVILLI for
greater absorption of nutrients.
Large
Intestine
Absorbs water and some vitamins & minerals and removes
excess wastes from the body.