Parasympathetic stimulation of stomach leads to all the following except:
1. secretion of somatostatin
2. inhibition of somatostatin
3. secretion of gastrin
4. promotes histamine
The serous secretions [enzyme rich] are stimulated by the hormone:
1. cholecystokinin
2. secretin
3. enterogastrone
4. enterocrinin
The hepatopancreatic ampulla [ampulla of Vater] is formed by the union of common bile duct withthe:
1. hepatic duct
2. pancreatic duct
3. cystic duct
4. common hepatic duct
Small intestine can readily absorb all the following except:
1. Na+
2. Cl-
3. K+
4. Mg++
A peptide hormone that stimulates secretion of gastric acid (HCl) by the parietal cells of the stomach and aids in gastric motility is:
1. GIP
2. gastrin
3. secretin
4. CCK
Secretin will be secreted by the duodenal mucosa due to:
1. sodium bicarbonate in chyme
2. fats in chyme
3. peptones in chyme
4. hydrochloric acid in chyme
Most of the parasympathetic supply to the alimentary canal is by:
1. vagus nerve
2. thoracic spinal nerves
3. lumbar spinal nerves
4. sacral spinal nerves
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
The large intestine functions in:
1. Bicarbonate secretion and bacterial action
2. Acid secretion and bacterial action
3. Water reabsorption and mass movements
4. Mixing action and intestinal hormone production
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
The mechanism by which the fat-soluble vitamins move across the intestinal mucosa is:
1. facilitated diffusion
2. active cotransport
3. active antiport
4. simple diffusion
Which of the following statements is incorrect?
I. Absorption of simple sugar, alcohol, some water and medicines takes place in stomach
II. Maximum water absorption occurs in small intestine
III. Small intestine is the major site of digestion and absorption of food
IV. Fatty acid and glycerol are absorbed by lacteals
V. Nothing is absorbed in mouth and large intestine
1. I, IV and V
2. V
3. IV
4. II and III
The absorbed substances finally reach the tissue which utilize them for their activities. This process is called —
1. Assimilation
2. Emulsification
3. Catabolism
4. Digestion
The part of the small intestine where maximum absorption takes place is lined by:
1. Squamous epithelium
2. Cuboidal brush bordered epithelium
3. Columnar brush bordered epithelium
4. Transitional epithelium