32 terms

Digestion Vocab

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