2.22 describe the structure of the human alimentary canal and describe the functions of the mouth, oesophagus, stomach, small intestine, large intestine and pancreas

2.22 •mouth: •salivary glands in the mouth produce amylase enzyme in the saliva 

                     •teeth break down food mechanically 

        •oesophagus: •the muscular tube connecting your mouth and stomach

       

        •stomach: •it pummels food with it’s muscular walls

                         •prodcues the protease enzyme, pepsin

                         •produces hydrochloric acid: to kill bacteria, to give the right pH (pH2) for protease

         •liver: •where bile is produced 

         •gall bladder: •where bile is stored

         •pancreas: •produces the enzymes protease, amylase and lipase. They are released into the small intestine  

         

         •small intestine: •produces protease, amylase and lipids enzymes to complete digestion

                                   •absorbs nutrients out of the alimentary canal into the body by the villi

         •large intestine: •excess water is absorbed from food, producing faeces

         •anus: •where your faeces leave