F211 - Exchange Surfaces and Breathing 0.0 / 5 ? BiologyHuman, animal and plant physiologyA2/A-levelOCR Created by: KHillCreated on: 05-11-15 14:16 71094325168 Across 1. During Expiration, the diaphragm .... and is pushed up by displaced organs underneath (7) 5. Bronchi are..... than the trachea (8) 6. The type of epithelium Alveoli have to reduce diffusion distance (8) 8. Organisms which require specialised exchange surfaces (13) 9. Pressure in thorax goes ..... the atmospheric pressure (Expiration) (5) 10. Elastic fibres....to....air (6, 5) Down 2. Volume of thorax .... (Inspiration) (9) 3. The largest volume of air that can moved into and out of the lungs in any one breath (5, 8) 4. ...... intercostal muscles contract to raise ribs (inspiration) (8) 7. These lie across the surfaces of alveoli, delivering and removing CO2 and O2 respectively (11)
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