What is the difference between the alimentary canal and the digestive system?

The alimentary canal and the digestive system are related concepts but refer to slightly different aspects of the human body's digestive process:

Alimentary Canal:

The alimentary canal, also known as the gastrointestinal (GI) tract or digestive tract, is a continuous muscular tube that runs from the mouth to the anus.
It includes several organs: mouth, pharynx, esophagus, stomach, small intestine, and large intestine (colon).
The primary function of the alimentary canal is to transport food from the mouth to the anus, where digestion and absorption of nutrients occur.
Digestive System:

The digestive system includes not only the alimentary canal but also other accessory organs that aid in the process of digestion.
In addition to the organs of the alimentary canal, the digestive system includes accessory organs such as the salivary glands, pancreas, liver, and gallbladder.
These accessory organs produce digestive enzymes, bile, and other substances that help break down food into smaller molecules that can be absorbed by the body.
In summary, while the alimentary canal specifically refers to the muscular tube through which food passes, the digestive system encompasses a broader range of organs and structures involved in the digestion and absorption of nutrients.