Explain the control of breathing.

[Click here to toggle visibility of the answers]

College Answer

This question was generally well done. It was expected answers would include discussion of
the three core elements of sensors, a central controller and effectors. Central control involves 
three main groups of neurones in the brainstem with some cortical voluntary control also 
possible. More in depth answers included graphs of the ventilatory response to oxygen and 
carbon dioxide tensions.