Podcast
Questions and Answers
Which motor function of the GI tract is responsible for the grinding and mixing of food with gastric secretions?
Which motor function of the GI tract is responsible for the grinding and mixing of food with gastric secretions?
- Mastication
- Segmentation (correct)
- Emesis
- Peristalsis
Which sphincter is responsible for preventing gastric reflux by closing to keep the contents in the stomach until they are ready to be moved to the small intestine?
Which sphincter is responsible for preventing gastric reflux by closing to keep the contents in the stomach until they are ready to be moved to the small intestine?
- Hepatopancreatic sphincter
- Anal sphincter
- Ileocecal valve
- Pyloric sphincter (correct)
What is the main hormonal signal that stimulates the migrating motor complex (MMC) in the small intestine?
What is the main hormonal signal that stimulates the migrating motor complex (MMC) in the small intestine?
- Gastrin
- Cholecystokinin
- Motilin (correct)
- Secretin
Which structure regulates the passage of food from the small intestine to the colon and prevents backflow?
Which structure regulates the passage of food from the small intestine to the colon and prevents backflow?
What is the primary function of haustra in the colon?
What is the primary function of haustra in the colon?
Which regulatory mechanism controls the relaxation of the internal anal sphincter during defecation?
Which regulatory mechanism controls the relaxation of the internal anal sphincter during defecation?
What is the main function of the colon related to the absorption of water and electrolytes?
What is the main function of the colon related to the absorption of water and electrolytes?
What are haustrations in the large intestine primarily responsible for?
What are haustrations in the large intestine primarily responsible for?
Which reflex is responsible for stimulating mass movements pushing feces into the rectum?
Which reflex is responsible for stimulating mass movements pushing feces into the rectum?
What controls the external anal sphincter, which is a striated voluntary muscle?
What controls the external anal sphincter, which is a striated voluntary muscle?
What happens to newborns and individuals with transected spinal cords in relation to control of the external anal sphincter?
What happens to newborns and individuals with transected spinal cords in relation to control of the external anal sphincter?
What can lead to severe constipation according to the text?
What can lead to severe constipation according to the text?
What is the function of churning in the GI tract?
What is the function of churning in the GI tract?
Which sphincter coordinates with the exocrine secretions of the pancreas and liver?
Which sphincter coordinates with the exocrine secretions of the pancreas and liver?
How long does it take for food to travel through the small intestine?
How long does it take for food to travel through the small intestine?
What is the role of the gallbladder in the digestive process?
What is the role of the gallbladder in the digestive process?
Which part of the GI tract is responsible for significant absorption of nutrients?
Which part of the GI tract is responsible for significant absorption of nutrients?
What is the main function of propulsion in the GI tract?
What is the main function of propulsion in the GI tract?
What is the main function of ileocecal and anal sphincters?
What is the main function of ileocecal and anal sphincters?
How do proximal stimuli affect sphincteric muscles?
How do proximal stimuli affect sphincteric muscles?
Why is chewing (mastication) important in the digestive process?
Why is chewing (mastication) important in the digestive process?
What physiological response does a food bolus in the mouth trigger during chewing?
What physiological response does a food bolus in the mouth trigger during chewing?
How many times is a food bolus typically chewed before passing through the esophagus without pain?
How many times is a food bolus typically chewed before passing through the esophagus without pain?
What happens as food moves through the pharynx and upper esophagus during swallowing?
What happens as food moves through the pharynx and upper esophagus during swallowing?
What is the primary cause of failure of the Lower Esophageal Sphincter (LES) to relax in patients with Achalasia?
What is the primary cause of failure of the Lower Esophageal Sphincter (LES) to relax in patients with Achalasia?
Which neurotransmitter is responsible for causing relaxation in the Lower Esophageal Sphincter (LES)?
Which neurotransmitter is responsible for causing relaxation in the Lower Esophageal Sphincter (LES)?
What role does the Cricopharyngeus muscle play during the pharyngeal stage of deglutition?
What role does the Cricopharyngeus muscle play during the pharyngeal stage of deglutition?
Which condition poses a main risk for adenocarcinoma of the lower esophagus?
Which condition poses a main risk for adenocarcinoma of the lower esophagus?
In what way does Metoclopramide influence the Lower Esophageal Sphincter (LES)?
In what way does Metoclopramide influence the Lower Esophageal Sphincter (LES)?
What is the primary function of Barrier Pressure in preventing gastroesophageal reflux?
What is the primary function of Barrier Pressure in preventing gastroesophageal reflux?
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