Succus entericus is referred to as:

1. Gastric juice

2. Chyme

3. Pancreatic juice

4. Intestinal juice

Sphincter of Oddi is present at :
1. Gastro-oesophageal junction
2. Junction of jejunum and duodenum
3. Ileo-caecal junction
4. Junction of hepato-pancreatic duct and duodenum

The proteolytic enzyme rennin is found in:

1. Intestinal juice

2. Bile juice

3. Gastric juice

4. Pancreatic juice

The intrinsic factor that helps in the absorption of vitamin ${\mathrm{B}}_{12}$ is secreted by:

1. Goblet cells

2. Hepatic cells

3. Oxyntic cells

4. Chief cells