How is alveolar ventilation regulated?

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College Answer

This is a core topic (syllabus Level 1) and a high level of understanding was expected. Overall 
candidates failed to demonstrate sufficient depth and breadth in their knowledge. A 
structured response considering the three basic elements underpinning the control of 
alveolar ventilation (the Sensors, Central integration and control and the Effectors) was core 
material. A detailed description of each was expected.