Biology - Digestive System Flashcards
What cells in the digestive tract (long tube with 2 openings) create mucus?
Goblet cells
Why is it important for our body to create mucus? (2 key points)
- Protects digestive tube from digestive enzymes
- Allows material to pass smoothly along the tube
How does the mechanical digestion process start?
Teeth & tongue
How does the chemical digestion process start?
Enzymes that break apart the molecules of food
What is saliva formed of?
Mixture of enzymes and water
What is saliva’s job?
to break down food chemically
How is saliva produced?
Epithelial cells that line the mouth
What is the tube called that connects your mouth to your stomach?
Esophagus
what muscle tissue in the esophagus pushes down the food into the stomach?
Peristalsis
Main function of stomach
Hold food and churn it; continuing process of digestion
What produces digestive enzymes and acids?
cells in the stomach lining
what connects the stomach and the anus?
Intestine
What does intestinal lining produce?
mucus
Which intestine does the most digestion occur in?
Small intestine
What does the large intestine do?
absorbs water from the indigestible food
3 organs that supply digestive enzymes
- Liver
- Pancreas
- Gall bladder
Which organ produces bile to breakdown fats?
Liver
What organ helps regulate the concentration of glucose in the blood?
Pancreas creates insulin
from where does the digestion start and end? (8 stages)
mouth, passes through the pharynx, esophagus, stomach, small intestines, large intestines, rectum and ends at the anus.
