Labels:book | bulletin board | earth | sky | vegetarianism OCR: How THE SYSTEM ORKS HE DIGESTIVE SYSTEM converts complex podj Food is bitten and substances into simple ones chewed into very small that the body can use Food pieces ready for swallowing is reduced to smaller pieces biting and chewing, and then by the action of digestive Mouth Oesophagus substances called enzymes. Food is passed through the digestive system by muscle KD Food crushed and movements in process called churned in the stomach. peristal Isis. Once digested, useful then partially digested by enzymes substances are absorbed into the bloodstream Small intestine Stomach Water is bsorbed from indigestible Large intestine waste, before this pushed out of the body PERISTALSIS OBSORPTION WORKS pooy allowing ater ABSORPTION
