The opening of the stomach into the duodenum is guarded by:
1. Cardiac sphincter
2. Sphincter of Oddi
3. Pyloric sphincter
4. Ileocaecal sphincter

Which of the following would not be classified as an accessory digestive gland?
1. Liver
2. Crypts of Lieberkuhn
3. Pancreas
4. Salivary glands

In jaundice, skin and eyes turn yellow due to the deposition of:
1. Bile salts
2. Carotenoids
3. Xanthophylls
4. Bile pigments

Chylomicrons are:

Diarrhoea is most likely to affect most the process of:
1. Ingestion of food
2. Passage of food through the upper alimentary canal
3. Digestion of the food in the large intestine
4. The absorption of food

Carbohydrates in the chyme are hydrolysed into disaccharides by:
1. Salivary amylase
2. Pancreatic amylase
3. Gastric amylase
4. Intestinal amylase

The causes of indigestion include all except:
1. parasympathetic stimulation
2. anxiety
3. food poisoning
4. eating spicy food

The mucus and bicarbonates present in the gastric juice play an important role in:
1. providing an alkaline medium for enzyme action.
2. lubrication and protection of the mucosal epithelium from excoriation by the highly
concentrated hydrochloric acid.
3. converting the bolus into a paste like chyme.
4. providing an acidic medium for enzyme action.

The egestion of faeces to the outside through the anal opening (defaecation) is:
1. a voluntary process and is carried out by a mass peristaltic movement.
2. an involuntary process and is carried out by a mass peristaltic movement.
3. a voluntary process and is carried out by an anteperistaltic movement.
4. a voluntary process and is carried out by a peristaltic movement.

What prevents the back flow of faeces from caecum into the small intestine?
1. ileo-caecal valve
2. ileo-caecal sphincter
3. vermiform appendix
4. taenia coli muscle