Many of the pancreatic enzymes must be activated by trypsin before they can begin digesting food, but trypsin itself requires the activating effect of
(1) chymotrypsin
(2) carboxypeptidase
(3) phospholipase
(4) enterokinase
Gastric secretion is stimulated by all except
(1) Secretin
(2) Gastric distension
(3) Gastrin
(4) Vagal stimulus
The portion of human stomach into which the oesophagus opens is the:-
1. Cardiac
2. Fundus
3. Corpus
4. Pylorus
Muscularis layer of the wall of the alimentary canal is formed by:-
1. Smooth muscle arranged into an inner longitudinal and an outer circular layer
2. Smooth muscle arranged into an inner circular and an outer longitudinal layer
3. Skeletal muscle arranged into an inner longitudinal and an outer circular layer
4. Skeletal muscle arranged into an inner circular and an outer longitudinal layer
The optimum pH for the enzyme salivary amylase is:
(1) 4.5
(2) 6.8
(3) 7.3
(4) 8.2
Intrinsic factor is secreted by the_cells of the human stomach.
1. Mucus neck cells
2. Chief cells
3. Oxyntic cells
4. G-cells
Which of the following is a sub-mucosal gland?
1. Oxyntic glands of stomach
2. Crypts of Lieberkuhn of small intestine
3. Brunner's glands of the duodenum
4. Goblet cells
To move into the intestinal mucosa, fatty acids and glycerol are first incorporated into:
(1) Chyle
(2) Micelles
(3) Chylomicroms
(4) Lipoproteins
A mass peristaltic movement is responsible for:-
1. Release of bile and pancreatic juice into the duodenum
2. Passage of chyme from stomach to duodenum
3. Vomiting
4. Defecation
Populations subsisting primarily on corn would likely to suffer from:
1. PEM
2. Pellagra
3. Bleeding disorders
4. Beri beri