Consider the following statements regarding human alimentary canal:
I. Human dentition is thecodont, homodont and diphyodont
II. The tongue is freely movable muscular organ attached to the roof of the oral cavity by the frenulum
III. The opening of the stomach into the duodenum is guarded by the cardiac sphincter
The incorrect statements include:

1. None	2. Only I
3. I and III only	4. I, II and III

The structural and functional units of liver are:
1. The four hepatic lobes containing the hepatic sinusoids lined by kupffer cells
2. The hepatic lobules containing hepatic cells arranged in the form of cords
3. The porta hepatis which carries the common bile duct and common hepatic artery, and the opening for the portal vein.
4. The right and the left lobes separated by the falciform ligament

Bile pigments help in:
1. Emulsification of fats
2. Absorption of the end products of fat digestion
3. Hydrolysis of fats
4. They do not play any role in fat metabolism or digestion

Visceral mesothelium is:
1. a membrane composed of simple cuboidal epithelium
2. the layer that covers the body walls
3. the epithelium component of serosa
4. innermost lining of the blood vessels derived from embryonic mesoderm

The region of the stomach into which the espophagus opens is called as:
1. Cardiac
2. Fundic
3. Corpus
4. Pyloric

Brunner’s glands are located in the duodenal:
1. Mucosa
2. Sub mucosa
3. Muscularis
4. Serosa

The oral cavity initiates all the following except:
1. Chemical process of digestion
2. Mechanical process of digestion
3. Deglutition
4. Peristalsis

Pancreatic lipase can be activated by:
1. Bile
2. Enterokinase
3. Secretin
4. Enterogastrone

Which of the following is not a function of adult liver?
1. Glycogen storage
2. Detoxification
3. Erythropoiesis
4. Synthesis of clotting proteins

The only exopeptidase amongst the following is:
1. Carboxypeptidase
2. Chymotrypsin
3. Trypsin
4. Elastase