Situated between the circular muscle layer and the longitudinal muscle layer in the lower esophagus, stomach, and intestines, the major nerve supply to the gastrointestinal tract that controls GI tract motility is the:
1. myenteric plexus
2. muscularis
3. submucosal plexus
4. serosa

Perhaps the only function of stomach that appears to be essential for life is the:
1. bactericidal action of HCl
2. digestion of proteins
3. absorption of drugs like acetyl salicylic acid
4. secretion of intrinsic factor

Identify the correct statement regarding the transport of the absorbed products of fat digestion:

1. Free fatty acids and monoglycerides are transported to the liver via the hepatic portal vein

2. Triglycerides are transported through the lymphatics in lipoproteins called LDL

3. Triglycerides are transported through the lymphatics as part of lipoproteins called chylomicrons

4. Free fatty acids and monoglycerides are transported through the lymph as part of lipoproteins called chylomicrons

HCl in stomach is the function of ___ cells that contain an enzyme called ___ that catalyzes the reaction between ______________ and water.
1. Chief; carbonic esterase; carbon dioxide
2. Parietal; carbohydrase; bicarbonate
3. Parietal; carbonic anhydrase; carbon dioxide
4. Goblet; carbonic anhydrase; bicarbonate

Identify the incorrect statement:

1. Increasing acidity in the stomach stimulates endocrine cells in the gastric epithelium to produce somatostatin that inhibits further HCl secretion

2. HCl production increases in response to carbohydrates entering the stomach

3. HCl secretion is inhibited when acidity increases in the small intestine

4. Gastrin, histamine, and acetylcholine all act to increase HCl secretion

A common cause of peptic ulcer disease is:
1. Increased activity of the autonomic nervous system in persons with chronic stress
2. Infection of the stomach wall by Helicobacter pylori (a type of bacteria)
3. Consuming high levels of dairy products and hot, spicy foods
4. Increased production of hydrochloric acid (HCl) or gastrin by the stomach

Myenteric and meisener’s plexus regulate the functions of the gut in response to changes in:
1. External stimuli
2.Local Environment
3. Central nervous system activation
4. Hormone concentrations

The transporter involved in apical transport of glucose in an enterocyte is:
1. GLUT2
2. GLUT4
3. SGLT-1
4. GLUT5

What is true about the Peyer's patches in the intestinal wall?

1. They are lymphoid nodules located in the ileum

2. They are lymph nodes located in the duodenum

3. They protect the large intestine from bacteria in the small intestine, which might pass through the ileocecal valve

4. They are lymphoid nodules located in the ileum and protect the large intestine from bacteria in the small intestine, which might pass through the ileocecal valve

Amongst the enteroendocrine cells, histamine is secreted by:

1. Enterochromaffin cells

2. Enterochromaffin like cells

3. I cells

4. D cells