______3. When the diaphragm relaxes, the lungs become small. This results in exhalation. ______4. The waste is filtered from the blood through your two kidneys. ______5. Peristalsis is the muscular movement of esophagus ______6. The nasal cavity helps to breakdown of food. ______7. The end of the large intestine is called liver. ______8. The nervous system is very important in removing waste from our body. ______9. Carbon dioxide in the air moves to the lungs and into the blood, while oxygen diffuses in the opposite direction, out of the blood and into the lungs ______10. The nervous system comprises of brain, spinal cord and bronchi.​
