Produce saliva when stimulated by presence of food or by acidic juices.
Process of breaking down food to sizes that can be absorbed by cells.
When we bite, tear, and chew food.
Three pairs of salivary glands
Parotid, Submandibular, Sublingual.
Produces watery secretion.
A very mucoid secretion (mucus).
A combination of watery and mucoid.
1. Cleansing the mouth
2. Enhance taste
3. Moistening food to form bolus
Break down food.
Where food and air enter the digestive system.
First set of teeth a baby develops. 8 incisors 4 canines 8 molars.
Push baby teeth out at about 7 years of age. 8 incisors 4 canines 8 premolars 12 molars.
Contain taste buds.
Rhythmic contractions of the digestive tract.
A circular tube that opens up and closes a tube.
Connection between stomach and esophagus
Above the body of the stomach, below the cardiac sphincter.
The large folds created in the stomach when it is empty.
Secrete chemicals to aid in digestion.
Protects the stomach lining.
Regulates the amount of food that enters the small intestine.
Receives partly digested foods, first section of the small intestine.
Nutrients are absorbed, second section of the small intestine.
Absorbs whatever the jejunum does not absorb, final section of the small intestine.
Lining of the small intestine
Contains blood and connects an artery to a vein.
Contains a fluid called lymph (white blood cells) and carries it into the lymphatic system.
They aid in the digestion and absorption of the digested material.
Regulates carbohydrate, protein, and lipid metabolism, and drugs that have entered the body and converts it into bile.
The bile created from the liver is stored in the gall bladder. It is then releases the bile into the small intestine.
Produces hormones and digestive enzymes to deliver to the duodenum to help digestion
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Digestive Study Doc
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The Digestive System