Going in one way and out another
You must have an understanding of the parts of the digestive system and the part they play (i.e. features & functions)
- the mouth, teeth and tongue
- epiglotis and oesophagus
- gall bladder, pancreas, small intestine & large intestine
- appendix, rectum and anus
You will also need to have an understanding of salivary glands, peristalsis and that the major pathway is the alimentary canal
The most important information that is needed is the anatomy of this system. Know the digestive system illustration, shown above, backwards.