20+Anna+Suters

= ........................................................................................The Digestive System...................................................................................... = Defenition -

pancreas - 15cm long multipurpose 'side attachment' to the digestive track. stomach - The stomach is a j-shaped organ with a capacity of about 2L. Muscles in the stomach walls churn food and mix it with gastric juice. teeth - Each of a set of hard, bony enamel-coated structures in the jaws of most vertebrates, used for biting and chewing. large intestine - Lumps of faeces (referred to as stools) form inside the large intestine, eventually to be expelled via another sphincter, the anus. liver - At 1.5kg, the liver is the body's largest internal organ. The liver is a chemical 'factory', producing chemicals essential in over 500 processes in the body. tongue - The fleshy muscular organ in the mouth of mammal. salivary gland - any of three glands in the mouth and digestive system that secrete saliva for digestion. gall bladder - a gallbladder is a muscular sac attached to the liver that stores bile. small intestine - The small intestine is only 3 to 4 cm wide - hence its name. Water and minerals are absorbed from undigested waste passing through it. oesophagus - makes food into small lumps called bolces.
 * Define the function of the following organs;**

a. that produces insulin to control sugar in the blood - b. that is lined with 'villi' - small intestine c. where faeces are stored before being expelled - large intestine d. that makes food into a small lump called a bolus - oesophagus
 * Identify the part of the digestion system**