The alimentary canal, also known as the gastrointestinal tract, is a long, continuous tube that extends from the mouth to the anus. It is responsible for the digestion and absorption of nutrients.
Oesophagus: The esophagus is a muscular tube that connects the mouth to the stomach.
Small intestine: The small intestine is the longest part of the alimentary canal and is divided into three sections: duodenum, jejunum, and ileum.

Alimentary Canal: This includes the organs that form a continuous passage from the mouth to the anus, such as: Mouth, Oesophagus, Stomach, Small intestine, Large intestine, Appendix, Rectum, and Anus