digestion - mechanical and chemical breaking down of food
absorption - nutrients absorbed or taken into the bloodstream from various parts of the alimentary canal
assimilation - absorbed nutrients travel via the bloodstream, enter the bodys cell and become part of cellular metablosim
egestion - unabsorded remains in the gut, plus dead skin cells and bacteria, are compacted and dehydrated to form faeces which is then eliminated from the body
what is the alimentary canal
is a tube that food passes though
what are accessory organs
organs that release secretions into the alimentary canal but food does not pass though them
