—The alimentary canal is a muscular membranous tube. It is about thirty feet in length, and extends from the mouth to the anus. It is lined throughout by a mucous membrane.
The following outline will show the parts of the alimentary canal:
| Mouth Pharynx Oesophagus Stomach | |
| Small Intestines | Duodenum |
| Jejunum | |
| Ileum | |
| Large Intestines | Caecum |
| Colon | |
| Rectum | |
The accessory organs to the alimentary canal are the following:
Teeth, Salivary glands, Liver, Spleen, Pancreas.
The Mouth.
—The mouth is placed at the commencement of the alimentary canal. It is a nearly oval shaped cavity.
In this cavity the mastication of the food and the insalivation of the food takes place.
The Teeth.
—The structure of the teeth has been considered under the head of tissues.