Guida verificata passo dopo passo
06:57
3:44
04:53A surgical procedure known as gastric bypass involves creating a small upper stomach pouch and attaching part of the small intestine to this pouch, “bypassing” the rest of the stomach and part of the duodenum.
How would bypassing a significant portion of the stomach affect absorption of vitamin B12? Explain.
Drugs with anticholinergic side effects block ACh receptors in the peripheral nervous system, including those on digestive organs. Predict the effects such drugs would have on motility and secretion on the specific organs of the digestive system.
Mr. Williams presents to your clinic with a complaint of abdominal pain in the right upper quadrant. He says that the pain worsens when he eats, particularly when he eats fatty meals. He has noticed that his stool has been an unusual clay color recently. You perform an ultrasound of his abdomen and find that gallstones are blocking his common bile duct, preventing bile from entering the duodenum.
Explain why his feces have become a clay color instead of a normal brown color.
Trace the pathway that food takes through the entire alimentary canal, from the oral cavity to the anal canal.
Mr. Williams presents to your clinic with a complaint of abdominal pain in the right upper quadrant. He says that the pain worsens when he eats, particularly when he eats fatty meals. He has noticed that his stool has been an unusual clay color recently. You perform an ultrasound of his abdomen and find that gallstones are blocking his common bile duct, preventing bile from entering the duodenum.
Why are his symptoms worse when he consumes a high-fat meal? Would you expect his symptoms to worsen or lessen when he consumes a meal consisting only of carbohydrates? Explain.
