The two main divisions of the digestive system organs are the alimentary tract and the accessory organs.
Alimentary Tract
The alimentary tract, also known as the digestive tract, is the pathway through which food travels as it is digested. It's a long, continuous tube starting at the mouth and ending at the anus.
- The following organs make up the alimentary tract:
- Mouth
- Pharynx
- Esophagus
- Stomach
- Small intestine
- Large intestine
- Rectum
- Anus
Accessory Organs
Accessory organs play a crucial role in digestion but are not part of the alimentary tract. These organs aid the process through various secretions and functions.
- Accessory digestive organs include:
- Salivary glands
- Liver
- Gallbladder
- Pancreas
These organs secrete enzymes and fluids that assist in breaking down food within the alimentary tract.
| Division | Description | Organs |
|---|---|---|
| Alimentary Tract | Continuous pathway through which food travels; where digestion and absorption of nutrients primarily occur. | Mouth, pharynx, esophagus, stomach, small intestine, large intestine, rectum, anus |
| Accessory Organs | Support digestive process; secrete enzymes and fluids; food does not pass directly through them. | Salivary glands, liver, gallbladder, pancreas |
In summary, the digestive system is divided into two main categories, the alimentary tract which serves as the physical pathway, and accessory organs that aid in the digestive processes through their secretions.
