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:
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
Which of the following glandular secretions involved in digestion would be most likely released initially as inactive precursors ?
(1) protein-digesting enzymes
(2) fat-solublizing bile salts
(3) acid-neutralising bicarbonate
(4) hormones such as gastrin
What prevents the back flow of the fecal matter into the small intestine?
1. Ileo-caecal valve
2. Sphincter of Boyden
3. Meckel's diverticulum
4. Plicae semilunaris
The parietal cells or the oxyntic cells located in the stomach's gastric pits mainly secrete:-
1. HCI and Intrinsic factor
2. Pepsinogen and Gastric lipase
3. Pepsinogen and Pro-rennin
4. Gastrin and Mucus
The mucosal layer in the stomach form irregular folds known as:-
4. crypts of Lieberkuhn
What regulates the opening of oesophagus into the stomach?
1. A membranous valve
2. A muscular sphincter
3. A mesodermal septum
4. A cartilaginous flap
Muscularis layer in the wall of the alimentary canal is formed by smooth muscles usually arranged into:-
1. an inner circular and an outer longitudinal layer.
2. an inner longitudinal and an outer circular layer.
3. both circular layers
4. both longitudinal layers
Which of the following gastric secretory cells is correctly matched with its secretion(s) ?
1. Chief cells - gastrin
2. parietal cells -- hydrochloric acid and intrinsic factor
3. enteroendocrine cells -- mucus and hormones
4. mucous cells -- pepsinogen and mucus