Mouth
What is the mouth's part in the digestive system?
Break food into smaller pieces by chewing it up, making it easier to swallow
The acidic digestive fluid helps with what?
Digestion and protects the body by killing bacteria from the food
True or false, the esophagus is connected to the mouth.
True
villi lines are inside of what?
small intestine
what is the last organ in the GI tract
large intestine
Spit is also known as what?
Saliva
The brain signals to the stomach to secrete what?
Does the esophagus digest any food?
No
all of the small intestine accept duodenum is dedicated to what?
absorption
what are indigestible food materials (3)
fiber, bacteria, and water
Chewing simulates the _________ to secrete saliva and chewing increases surface area of food.
Salivary Glands
What acid does the gastric juice from the stomach contain?
Hydrochloric Acid (HCI) and enzymes
What does the esophagus do?
Transport food
What are the small intestine?
The longest portion of the GI tract where digestion and absorption take place
What is the large intestine?
Last organ in the GI tract where most water is absorbed and feces are formed
What moistens food and chemically breaks down carbohydrates using enzymes?
Saliva
What is the stomach and What does it do?
The stomach is an organ where food is partially digested, churned, and stored until released into the small intestine
What is the esophagus?
Muscular contractions that squeeze and push in a rhythmic, wave like motion to move food through the GI trac
what are the three sections of the small intestine?
duodenum, jejunum, ileum
what percent of our body usually digests the food we eat?
90%
What are enzymes?
Proteins that help speed up chemical reactions
The stomach churns the food with these gastric juices until the food turns into liquid called what?
Chyme
What is the GI tract?
The line of digestion
which of the three sections does the last of digestion occur in?
duodenum
What is another name for the large intestine?
Colon