Podcast
Questions and Answers
What is the initial role of the small intestine in digestion?
What is the initial role of the small intestine in digestion?
- To transport food directly to the body's cells
- To absorb nutrients from food into the bloodstream
- To completely digest food after it leaves the stomach
- To break down food further using digestive juices (correct)
What do the villi in the small intestine primarily do?
What do the villi in the small intestine primarily do?
- Increase the surface area for nutrient absorption (correct)
- Transport food into the stomach
- Secrete digestive enzymes into the food
- Produce bile for fat digestion
How do nutrients from the food enter the bloodstream?
How do nutrients from the food enter the bloodstream?
- By passing through the villi in the small intestine (correct)
- Through the stomach lining
- Via the digestive enzymes present in the bile
- Through the pancreatic juices in the intestine
What is the structure of the small intestine?
What is the structure of the small intestine?
What becomes of the nutrients after they are absorbed through the villi?
What becomes of the nutrients after they are absorbed through the villi?
Flashcards
Small intestine's initial role
Small intestine's initial role
Breaks down food further using digestive juices
Small Intestine's Villi Function
Small Intestine's Villi Function
Increases surface area for nutrient absorption
Nutrient Entry into Bloodstream
Nutrient Entry into Bloodstream
Occurs through villi in the small intestine
Small Intestine Structure
Small Intestine Structure
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Fate of absorbed nutrients
Fate of absorbed nutrients
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Study Notes
Small Intestine
- Food travels from the stomach to the small intestine in small amounts.
- The small intestine is a long and winding tube.
- Special juices within the small intestine continue the process of breaking down food.
- The small intestine is covered with thousands of tiny finger-like projections called villi, which increase the surface area for absorption of nutrients.
- Nutrients are absorbed from the food by the villi and enter the bloodstream.
- The nutrients are then carried throughout the body to cells.
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