Respiration 5.0 / 5 based on 2 ratings ? Physical EducationRespiratory systemGCSEEdexcel Created by: megan.leigh01Created on: 13-10-16 14:56 62845937110 Across 1. more...... used to create energy (6) 4. the......... relax, the ribcage drops inwards and downward (11, 7) 5. When the body is at rest this is respiration. (7) 7. When exercising very hard, the heart cannot get enough oxygen to the muscles. Respiration then becomes ........ (9) 10. more .......... produced as a waste product of energy production (6, 7) Down 2. less oxygen as it has been used in ....... (11) 3. ............takes place by diffusion in the alveoli within the lungs. As a result the composition of inhaled and exhaled air is different. (3, 8) 6. After passing into the many bronchioles, it finally arrives into some of the millions of tiny sacs called ...... (7) 8. the diaphragm contracts, pulling downwards to increase the........ of the chest (6) 9. Respiration is the release of energy from in the muscles. (7)
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