Natural Science 2Version en ligne NUTRITION: DIGESTIVE, RESPIRATORY, CIRCULATORY & EXCRETORY SYSTEMS par Dana Senande Martín 1 MOUTH 2 STOMACH 3 SMALL INTESTINE 4 LARGE INTESTINE 5 TRACHEA 6 LUNGS 7 HEART 8 VEINS 9 KIDNEYS 10 BLADDER 11 ARTERIES