1. How are ventilation and perfusion matched in animals?What short-term changes occur to balance these twocomponents?
2. Diagram the negative feedback loopfor the homeostatic regulation of blood PO2; identify the sensors,integrators, and effectors in this system.
3. What are the critical modulators of respiration inwater and air breathing animals? (i.e. what respiratory gas hasprimary influence on ventilation?)
