Podcast
Questions and Answers
Where does the majority of digestion and absorption of carbohydrates, proteins, and lipids occur?
Where does the majority of digestion and absorption of carbohydrates, proteins, and lipids occur?
- Stomach
- Large intestine
- Small intestine (correct)
- Mouth
Which segment of the small intestine is the first 20-30 cm in length?
Which segment of the small intestine is the first 20-30 cm in length?
- Colon
- Jejunum
- Duodenum (correct)
- Ileum
What anatomical modifications aid in the functions of digestion and absorption in the small intestine?
What anatomical modifications aid in the functions of digestion and absorption in the small intestine?
- Plicae circulares
- Microvilli
- Villi
- All of the above (correct)
Which part of the digestive system is the longest and most convoluted?
Which part of the digestive system is the longest and most convoluted?
When does digestion begin and continue as food travels through the small intestine?
When does digestion begin and continue as food travels through the small intestine?
What is the movement of nutrients, water, and electrolytes from the lumen of the small intestine into the cell, then into the blood known as?
What is the movement of nutrients, water, and electrolytes from the lumen of the small intestine into the cell, then into the blood known as?
What is the function of villi in the small intestine?
What is the function of villi in the small intestine?
Where are microvilli found in the small intestine?
Where are microvilli found in the small intestine?
Which enzyme starts the breakdown of starch molecules in the mouth?
Which enzyme starts the breakdown of starch molecules in the mouth?
What is the main function of peristalsis in the small intestine?
What is the main function of peristalsis in the small intestine?
What effect does distension of the small intestine have during a meal?
What effect does distension of the small intestine have during a meal?
What is the composition of sucrose?
What is the composition of sucrose?
What is the function of disaccharidases in the small intestine?
What is the function of disaccharidases in the small intestine?
Which part of the small intestine is particularly well developed and increases the absorptive surface area about three-fold?
Which part of the small intestine is particularly well developed and increases the absorptive surface area about three-fold?
What is the role of segmentation in the small intestine?
What is the role of segmentation in the small intestine?
What enhances the motility of the small intestine during a meal?
What enhances the motility of the small intestine during a meal?
