12 Questions
What is the main function of the digestive system?
Breakdown of proteins, fats, and carbohydrates into simple particles
Which system controls the motility and secretion in the gastrointestinal tract?
Nervous system
Which nerve supplies the distal half of the colon, rectum, and anus?
Pelvic nerve
What is the role of parasympathetic fibers in the gastrointestinal tract?
Increase motor activities and secretory functions
Which part of the gastrointestinal tract does the vagus nerve supply?
Esophagus, stomach, pancreas
What is the significance of motility in the gastrointestinal tract?
Aiding in digestion and content propulsion
What is the function of Auerbach's plexus in the enteric nervous system?
Controls GIT motility
Where do most postganglionic sympathetic fibers terminate?
Neurons of enteric nervous system
How does sympathetic stimulation affect the GIT sphincters?
Induces contraction
Which hormones are considered local hormones in the context of GIT motility and secretion?
Gastrin and cholecystokinin
Where is Meissner's plexus located within the gut wall?
Submucosa
Which cells secrete polypeptide hormones acting on the GIT and considered local hormones?
Entero-endocrine cells
This quiz covers the functions of the digestive system, including the breakdown of food, secretion of digestive enzymes, and absorption of digested products. Contact Dr. Walid Qasem for more information about this module.
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