Human gastrointestinal tract

High school (ages 12+)
Human Body

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/human-gastrointestinal-tract

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What is the scientific name?Digestive System
2. What is the primary sites of absorption?Small intestine (nutrients, water, electrolytes) and large intestine (water, electrolytes)
3. What is the GI tract and how long is it?The GI tract is a long, muscular tube inside us that runs from the mouth to the anus. It is about 30 feet (9 meters) long, like a very long slide for food.
4. How does food become energy in our body?First, we chew food and mix it with saliva. Then stomach acid and enzymes break it down, and the small intestine absorbs the nutrients into our bloodstream.

Enteroendocrine Cells: Specialized cells in the GI tract lining that produce hormones regulating digestion.
Short-Chain Fatty Acids (SCFAs): Metabolic byproducts of microbial fermentation in the colon, crucial for gut health.
Gut-Brain Axis: The bidirectional communication pathway between the gastrointestinal tract and the central nervous system.