Respiration 5.0 / 5 based on 2 ratings ? Physical EducationRespiratory systemGCSEEdexcel Created by: megan.leigh01Created on: 13-10-16 14:56 2856103179 Across 1. less oxygen as it has been used in ....... (11) 2. When the body is at rest this is respiration. (7) 5. After passing into the many bronchioles, it finally arrives into some of the millions of tiny sacs called ...... (7) 6. Respiration is the release of energy from in the muscles. (7) 7. the......... relax, the ribcage drops inwards and downward (11, 7) Down 2. When exercising very hard, the heart cannot get enough oxygen to the muscles. Respiration then becomes ........ (9) 3. the diaphragm contracts, pulling downwards to increase the........ of the chest (6) 8. more .......... produced as a waste product of energy production (6, 7) 9. more...... used to create energy (6) 10. ............takes place by diffusion in the alveoli within the lungs. As a result the composition of inhaled and exhaled air is different. (3, 8)
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