Which option best describes the interdependence of skeletal muscle and respiratory systems during exercise?
QUESTION
Identify the direct effect on blood pH when ventilation decreases (hypoventilation).
QUESTION
Identify the direct effect on blood pH when ventilation increases (hyperventilation).
Tap to flip before you grade
ANSWER
Blood pH increases (respiratory alkalosis tendency) as CO2 decreases. Reduced CO2 shifts the equilibrium away from carbonic acid, raising pH in a negative feedback response.