Digestion Flashcards
Describe the stomach
A stretchy bag shaped like a J
Name the important jobs of the stomach
Break down larger molecules into simpler ones
Store food
Slowly empty liquid mixture into the small intestines
What does the stomach do?
Churn bolus to break it down into smaller and smaller pieces
What allows the stomach to churn food?
Strong muscles in the walls of the stomach
Where do gastric juices come from?
The glands along the stomachs wall
What do gastric juices do?
Help break down protein and kill bacteria which was in food
What is the entry of food into the small intestine from the stomach controlled by?
The pyloric sphincter
What are the stomach’s walls lined with? Why?
Mucous
To protect it from its own juices
Where are most minerals, vitamins, and nutrients absorbed into the bloodstream?
The large intestine
Removing water from a liquid mixture transforms it into what?
Solid waste
Where is solid waste expelled?
The anus
What are the walls of the large intestine lined with? Why?
Mucous
It acts as lubricant to facilitate the passage of solid waste
Describe the esophagus
A stretchy pipe
What does the esophagus do?
Moves food from the back of your throat to your stomach through peristalsis
The esophagus has rings of what at the top and bottom? What are they called?
Muscles
Sphincter
