The alimentary canal is just the tube that goes from the mouth to the anus. The digestive system includes that tube but also all of the physiology that occurs along the tube and the accessory organs actions and products.
the digestive tract refers to the GI or the gastrointestinal tract, which runs from the mouth to the anus. The digestive system refers to the organs related to the digestion of contents that are ingested, and how the foods are digested both mechanically and chemically.
The alimentary canal is the tube going from the mouth to the anus. The accessory organs are the organs located along that canal which produce enzymes to aid the digestion process.
The large intestine is the region of the alimentary canal that produces no digestive enzymes.
The alimentary canal or the gastrointestinal (GI) tract.
The Alimentary System.
Alimentary Canal
There are several differences between a bird's and an insect's alimentary canals. A bird's begins with the beak while an insect's doesn't. A bird's alimentary canal has a tongue, pancreas and duodenum, while an insect's doesn't.
The digestive system
There is no difference. Both terms refer to the same system. Digestive system is refferd to by many different names, but mostly digestive system, gastrointestinal (GI) tract, alimentary canal or dgestive tract.
The pancreas and the liver are the body organs that are not part of the alimentary canal. The liver and the pancreas are the organs that are not part of the alimentary canal.
That part of the alimentary canal between the pharynx and the stomach; the gullet. See Illust. of Digestive apparatus, under Digestive.
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