Blology How would inhibiting the acetylcholine receptor, histamine receptor, and the K+/H+ proton pump effect the overall function of the gastrointestinal system (excretion, absorption, acidity, etc.)?
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- Describe the primary function of stomach in a nice paragraph, orderwise, what are all the Main Enzymes , also what are the cells present in the lining of the stomach , describe about pepsin n pepsinogen and what do the contraction of muscle in stomach helps to ?? All the contributions to food digestionWatch this animation (http://openstaxcollege.org/l/sintestine) that depicts the structure of the small intestine, and, in particular, the villi. Epithelial cells continue the digestion and absorption of nutrients and transport these nutrients to the lymphatic and circulatory systems. In the small intestine, the products of food digestion are absorbed by different structures in the villi. Which structure absorbs and transports fats?If you put the following events in the order they occur inthe human digestive system, the third event in the serieswould be(A) Cells in gastric pits secrete protons.(B) Pepsin activates pepsinogen.(C) HCl activates pepsinogen.(D) Partially digested food enters the small intestine.
- Based on your knowledge and the information from the figure below, how is the acid production during the intestinal phase regulated?| enteric neurons neural refеx HCI acetylcholine intestinal phase stimuli: increased H*, distension, osmolarity, fats in duocienum parletal cell histamine enterogastrones: CCK, secretin, Gİ.P-1, GIP ECL somatostatin cell somatostatin- gastrin releasing cell Gcelldraw and explain how Na-K, ATPase drives intestinal nutrient absorption.Discuss the activation of pancreatic enzyme precursors in thesmall intestine?
- Identify the organs of the alimentary canal from the mouth to the anus and briefly state their function? Discuss the roles of the liver, pancreas, and gallbladder in digestion? Why is it important that chyme from the stomach is delivered to the small intestine slowly and in smallamounts?Why does the pancreas secrete some enzymes in their inactive forms, and where are these enzymes activated? Compare and contrast the digestion of the three macronutrients? (Carbs, fats, proteins)Could you explain the enteric nervous system of the digestive system, these points in detail? specialised cells called pacemakers generates rhythmic contractions by stimulating smooth muscle contraction. sensory neurons in digestive system provide feedback. parasympathetic neuron "tweak" the rhythm.(a) Life-threatening diarrhea is a shockingly common problemin the developing world. People with life-threatening diarrheaare often Na+-depleted, and to save their lives, replacing Na+ isessential. However, “raw” Na+ in the intestines is not absorbed.Drinking a solution of NaCl does not, therefore, replenish bodyNa+. In fact, drinking such a solution can actually worsen aperson’s situation by osmotically dehydrating the blood andother body fluids. Explain how drinking an NaCl solution couldhave this effect. (b) One of the greatest physiological discoveriesof the twentieth century was that drinking a solution of mixedglucose and NaCl can promote restoration of the body’s Na+. Withthe glucose concentration high enough in the solution, glucose“drives” the glucose–Na+ cotransporter in the apical membranesof intestinal epithelial cells, promoting Na+ uptake in sick people.Explain the concept behind this manipulation of the cotransporterfor therapeutic ends. The approach has saved millions…
- Young adult women have four times as many irontransport proteins in the intestinal mucosa as men have.Can you explain this in terms of functional significance?Besides being fundamentalfor the activation of the maingastric digestive enzyme howdoes HCl also directlyparticipate in digestion?Which of the following sphincters is under voluntary control? O Sphincter for the main pancreatic duct External anal sphincter O Internal anal sphincter O Pyloric sphincter O Cardiac sphincter Question 38 What is the submucosa of the alimentary canal? O A mucous lined layer of goblet cells O A thick smooth muscle layer for movement O A thin epithelial layer that is continuous with the mesentery O A layer of connective tissue that includes a nerve plexus and blood vessels O Layer that lines the lumen of the canal