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Questions and Answers
What is the function of segmental contractions in the small intestine?
What is the function of segmental contractions in the small intestine?
- Advancing luminal contents through the small intestine
- Promoting the formation of chyme
- Mixing luminal contents with secretions to enhance digestion (correct)
- Relaxing circular muscles for absorption
Where is the ileum located in relation to the jejunum?
Where is the ileum located in relation to the jejunum?
- The ileum is distal to the jejunum (correct)
- The ileum is anterior to the jejunum
- The ileum is proximal to the jejunum
- The ileum is superior to the jejunum
What suspends the jejunum and ileum in the peritoneal cavity?
What suspends the jejunum and ileum in the peritoneal cavity?
- Lesser omentum
- Omentum
- Mesentery (correct)
- Greater omentum
How does motility in the small intestine help with digestion?
How does motility in the small intestine help with digestion?
Which part of the small intestine begins the intestinal phase of digestion?
Which part of the small intestine begins the intestinal phase of digestion?
What kind of contractions propel intestinal contents forward in the small intestine?
What kind of contractions propel intestinal contents forward in the small intestine?
What is the function of goblet cells in the small intestine?
What is the function of goblet cells in the small intestine?
Where are Brunner's glands located?
Where are Brunner's glands located?
Which enzymes found in enterocytes are responsible for splitting disaccharides into monosaccharides?
Which enzymes found in enterocytes are responsible for splitting disaccharides into monosaccharides?
What stimulates secretion by Brunner's glands?
What stimulates secretion by Brunner's glands?
When a polymer such as protein is digested into its constituent monomers by pancreatic enzymes before absorption, what kind of substance is formed?
When a polymer such as protein is digested into its constituent monomers by pancreatic enzymes before absorption, what kind of substance is formed?
What is the purpose of mucus secreted by Brunner's glands?
What is the purpose of mucus secreted by Brunner's glands?
What is the role of intestinal lipase in digestion and absorption?
What is the role of intestinal lipase in digestion and absorption?
Which cells are responsible for reabsorbing water and electrolytes in the small intestine?
Which cells are responsible for reabsorbing water and electrolytes in the small intestine?
What enzyme is responsible for splitting small peptides into amino acids within enterocytes?
What enzyme is responsible for splitting small peptides into amino acids within enterocytes?
What is referred to as membrane digestion in the small intestine?
What is referred to as membrane digestion in the small intestine?
How are oligomers like sucrose digested before absorption according to the text?
How are oligomers like sucrose digested before absorption according to the text?
In the context of digestion and absorption, what happens to an oligomer like oligopeptide inside the cell?
In the context of digestion and absorption, what happens to an oligomer like oligopeptide inside the cell?
Why is it crucial that the stomach allows only small amounts of fat into the intestine at one time?
Why is it crucial that the stomach allows only small amounts of fat into the intestine at one time?
What is the role of incretin hormones GIP and GLP-1 during meal consumption?
What is the role of incretin hormones GIP and GLP-1 during meal consumption?
What happens when the sensors in the intestine wall are stimulated by high osmolarity?
What happens when the sensors in the intestine wall are stimulated by high osmolarity?
What is the primary function of the large intestine?
What is the primary function of the large intestine?
How much unabsorbed chyme remains by the end of the ileum?
How much unabsorbed chyme remains by the end of the ileum?
What is the significance of forming and storing feces in the large intestine?
What is the significance of forming and storing feces in the large intestine?
Where do most nutrients absorbed across the intestinal epithelium move into for distribution through the circulatory system?
Where do most nutrients absorbed across the intestinal epithelium move into for distribution through the circulatory system?
What is the function of stem cells in the crypts of Lieberkühn in the small intestine?
What is the function of stem cells in the crypts of Lieberkühn in the small intestine?
Where does most fluid secretion occur in the small intestine?
Where does most fluid secretion occur in the small intestine?
Which part of the small intestine increases the effective surface area for absorption?
Which part of the small intestine increases the effective surface area for absorption?
Where do digested fats primarily pass into after absorption in the small intestine?
Where do digested fats primarily pass into after absorption in the small intestine?
Which type of cells contain a variety of enzymes like cytochrome P450 isozymes that metabolize drugs and xenobiotics?
Which type of cells contain a variety of enzymes like cytochrome P450 isozymes that metabolize drugs and xenobiotics?
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