Completar frases Body systems summaryVersión en línea Complete this activity to summarise our topic on Body Systems por Belinda Schirmer 1 inhaled water oxygen alveoli lung capillaries glucose respiration bronchi mitochondria Cells obtain their energy by a chemical process called in which sugars such as are oxidised by oxygen to form carbon dioxide and . The process of cellular respiration occurs in organelles called . The respiratory system of humans includes the nose , trachea , , lungs and diaphragm . Small structures in the lungs called allow gases to be exchanged with blood flowing through . Exhaled air contains less and more carbon dioxide than air . Smoking causes a range of diseases including cancer . 2 Red atrium clotting veins diseases The circulatory system includes the heart and blood vessels such as arteries , and capillaries . blood cells carry oxygen around the body . White blood cells are involved in fighting certain . Platelets are involved in blood . The heart is divided into four chambers : right , left atrium , right ventricle and left ventricle . 3 anus oesophagus digestive saliva smaller moistens cells teeth The system is used to break down food into nutrient particles , which can be absorbed into the bloodstream where they can be carried to all of the body . The digestive system consists of the mouth , , stomach , liver , gall bladder , pancreas , small intestine and large intestine . The rectum and the are at the end of the large intestine . Mechanical and some chemical digestion occurs in the mouth where chew up food into smaller pieces and containing enzymes starts the breakdown of starch . The saliva also the food . 4 small enzymes gall fats stomach liver water Acids in the continue digestion . Proteins are starting to break down into smaller particles . Bile from the is temporarily stored in the bladder before being released into the small intestine . Bile emulsifies . Pancreatic juices contain , which enter the small intestine to continue the digestive process . Nutrients are absorbed through the wall of the intestine into the bloodstream . In the large intestine is reabsorbed as well as some vitamins and other nutrients . 5 excretory elimination energy protection pivot Carbohydrates are an important source of , which is also derived from fats and proteins . The muscular ? skeletal system offers support , and movement . Movement is only possible via the combined action of muscles and bones . Joints can be classified as hinge , or ball - and - socket . Waste is removed from the body via the system . Blood is filtered by the kidneys and urine is formed . The urine is stored in the bladder prior to .