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Alimentary canal

(Science: anatomy) The digestive tract. Tubular passage of mucous membrane and muscle extending about 8.3 meters from mouth to anus; functions in digestion and elimination.Pertaining to the digestive system, beginning at the mouth and ending at the anus. Its primary function is the intake and breakdown of food to be stored and used as energy, though the latter stages of the alimentary canal involves the re-absorption of substances from the large intestine. Any excess material is then excreted out the body via the anus.