20 Questions
What is the function of the villi in the small intestine?
To absorb nutrients efficiently
What is the function of the microvilli in small intestine cells?
Bear enzymes for breaking down double sugars and completing protein digestion
What is the function of the pancreas in digestion?
Responsible for starch digestion, half of protein digestion, almost total fat digestion, and nucleic acid digestion
What is the function of the colon in the digestive system?
A holding area for stool and releases it through the anus when full
What is the role of resident bacteria (microbiota) in the large intestine?
Metabolize remaining nutrients and release gases causing flatulence
Where does the small intestine connect to the large intestine?
At the ileocecal valve
What is the average length of the small intestine?
2 to 4 meters
Which structure in the small intestine increases the absorptive surface area?
Plicae circulares
What accelerates during the journey through the small intestine's looping coils?
Chemical digestion
Which part of the small intestine prevents it from being overwhelmed by chyme from the stomach?
Pyloric sphincter
What is the role of the circular folds in the small intestine?
To form an internal 'corkscrew slide' to increase surface area
Which structure prevents the small intestine from being overwhelmed by chyme from the stomach?
Pyloric sphincter
Where does digestion mostly occur in the small intestine?
Duodenum
What is the function of the ileocecal valve?
To connect the small intestine to the large intestine
What is the average length of the small intestine?
2 to 4 meters
What is the function of the lacteal in each villus of the small intestine?
Absorbing nutrients into the capillaries
What is the main function of the large intestine in the digestive system?
Metabolizing remaining nutrients and releasing gases
What is the role of the brush border enzymes in the small intestine?
Aiding in the digestion of fats and nucleic acids
What is the function of the pancreas in digestion?
Delivering enzymes and bicarbonate ions for digesting major nutrient groups
What is the function of goblet cells in the mucosa of the large intestine?
Producing alkaline mucus to lubricate the passage of feces
Test your knowledge about the functions and divisions of the small intestine, the longest section of the alimentary tube, responsible for chemical digestion and absorption. Understand its role in completing digestion and food absorption.
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