The peptic or chief cells of the gastric mucosa secrete:
1. Mucucs
2. HCl
3. A proenzyme
4. Prokinetic hormone
The lower section of stomach that facilitates emptying the contents into the small intestine is called:
1. Cardia
2. Fundus
3. Corpus or body
4. Pylorus
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
The intestinal enzymes require an alkaline pH to act. This is accomplished by the secretions of all the following except:
1. Goblet cells
2. Brunner’s glands
3. Parietal cells
4. Pancreas
About what percentage of starch is hydrolysed by salivary amylase into maltose?
1. 30 – 40
2. 50 – 60
3. 60 – 70
4. 90 – 100
The muscular activities of different parts ofthe alimentary canal can also be moderated by neural mechanisms that involve:
I. local mechanisms
II. through CNS
1. I only
2. II only
3. Both I and II
4. Neither I nor II
Identify the incorrect comparison of Kwashiorkor and Marasmus:
|
|
Kwashiorkor |
Marasmus |
1. |
Cause |
Protein deficiency with adequate energy intake |
Inadequate energy intake in all forms, including protein |
2. |
Age incidence |
Increases after 18 months |
Prior to age 1 |
3. |
Main clinical sign |
Muscular wasting and loss of subcutaneous fat |
Edema and ascites [abnormal buildup of fluid in the abdomen] |
4. |
Fatty infiltration in liver |
Common |
Not common |
The malfunction of which of the following cells in gastric mucosa can lead to the development of pernicious anemia?
1. Parietal cells
2. Chief cells
3. G cells
4. Enterochromaffin like cells
The gross calorific value for carbohydrates is:
1. 4.0 kcal/g
2. 4.1 kcal/g
3. 5.65 kcal/g
4. 9.45 kcal/g
The pancreatic acini:
1. Produce insulin and glucagon
2. Produce somatostatin
3. Secrete hydrolases
4. Store glucose and fats