Human digestive system

• Structure of the human digestive system:

  A) Tongue

  B) Teeth

  C) Salivary glands

  D) Soft palette

  E) pharynx

  F) epiglottis

  G) oesophagus

  H) liver

  I) Bile duct

  J) stomach

  K) gall bladder

  L) Duodenum

  M) Pancreatic duct

  N) pyloric sphincter

  O) pancreas

  P) colon

  Q) ileum

  R) appendix

  S) rectum

  T) anus

  
• Function of salivary glands - produce saliva
• Function of the oesophagus - carries food from the mouth to the stomach
• Function of the stomach - produces hydrochloric acid
• Function of the pyloric sphincter - controls the amount of food leaving the stomach
• Function of the duodenum - receives juices from the gall bladder and pancreas
• Function of the ileum - where the most digested food is absorbed
• Function of the bile duct - takes bile from the gall bladder to the duodenum
• Function of the pancreas - produces enzymes which pass into the duodenum
• Function of the gall bladder - stores bile
• Function of the colon - where most water is absorbed
• Function of the rectum - stores waste faeces for several hours
• Function of the anus - controls the passing of faeces
• Function of the cardiac sphincter - regulates how much food is entering the stomach from the oesophagus