Podcast
Questions and Answers
Which of the following is the primary role of stomach acids and enzymes in digestion?
Which of the following is the primary role of stomach acids and enzymes in digestion?
- Absorbing water and electrolytes from the digested material.
- Breaking down nutrients, especially proteins. (correct)
- Emulsifying fats to aid in their absorption.
- Neutralizing alkaline substances in the ingested food.
What mechanical process aids the stomach in breaking down food?
What mechanical process aids the stomach in breaking down food?
- Contractions of its muscular wall. (correct)
- The secretion of bile.
- The absorption of water.
- The release of pancreatic juices.
What happens to the waste products, including undigested fiber, after the digestion process in the small intestine?
What happens to the waste products, including undigested fiber, after the digestion process in the small intestine?
- They are immediately expelled from the body as urine.
- They are absorbed into the bloodstream for nutrient recycling.
- They are transported to the colon for temporary storage and later expelled. (correct)
- They are broken down further by enzymes in the small intestine.
Which of the following describes the role of the small intestine in the digestive process?
Which of the following describes the role of the small intestine in the digestive process?
How do the pancreas, liver, and intestine contribute to the digestive process in the small intestine?
How do the pancreas, liver, and intestine contribute to the digestive process in the small intestine?
What is the ultimate fate of materials within the colon?
What is the ultimate fate of materials within the colon?
Which component of food remains undigested and becomes part of the waste products?
Which component of food remains undigested and becomes part of the waste products?
What is the defining characteristic of the stomach wall that aids in digestion?
What is the defining characteristic of the stomach wall that aids in digestion?
Where does the liquefaction of food contents primarily occur during digestion?
Where does the liquefaction of food contents primarily occur during digestion?
Why is the mixing and pushing forward movement in the small intestine important?
Why is the mixing and pushing forward movement in the small intestine important?
Flashcards
Stomach Function
Stomach Function
A muscular organ that mashes food and uses acids and enzymes to break down nutrients, especially proteins.
Small Intestine
Small Intestine
The organ that receives liquefied stomach contents for further digestion.
Intestinal Digestion
Intestinal Digestion
Mixing of food with juices from the pancreas, liver, and intestine to enable nutrient absorption.
Colon Function
Colon Function
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Waste Products
Waste Products
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Bowel Movement
Bowel Movement
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Study Notes
- The stomach has a thick, muscular wall that contracts to mash food.
- Stomach acids and enzymes break down nutrients in food, especially proteins.
- The liquefied contents from the stomach move into the small intestine for further processing.
- In the small intestine, food mixes with juices from the pancreas, liver, and intestine.
- Mixing and propulsion in the intestine facilitate further digestion and nutrient absorption.
- Waste products include undigested food (fiber) and old cells from the stomach and intestine linings.
- Waste materials are propelled into the colon, and remain there for one or two days.
- The feces are expelled by a bowel movement.
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