Meaning of alimentary tract According to the picture i need easy meaning of that word only also examples i need easy examples plz define that word according to this paragraph plz help me meritnation experts ??????i need easy meanings not from google plz

Gut or alimentary canal is a long, coiled, muscular tube extending from mouth to anus through which food passes after it is eaten. It consists of mouth leading into buccal cavity, pharynx, oesophagus, stomach, small intestine, large intestine and anus. The lumen or cavity of alimentary canal is  surrounded by wall made up of four layers of different types of cells: mucosasubmucosamuscularis externa and serosa. Alimentary canal is meant for digestion, absorption and expelling of undigested wastes. 

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