Which of the following peripheral systems are used to monitor exercise:    

Opening of more capillaries (Vasodilation) is the product of:

An athlete stops his/her workout and their ventilation decreases because:    

Resistance is based on blood viscosity, length of conducting tube and vessel radius:

Regarding an ECG exam the T wave:  

We measure lactate threshold because it:    

Holding your breath triggers the urge to breathe at about 40 seconds as a result of decreased arterial PCo2 and H+ concentration?  

Regarding the heart and its blood supply and oxygen use, which of the following is/are most accurate:                  

Anaerobic exercise lessens the demand on the buffering system allowing PH regulation to be easily maintained:

Regarding varicose veins which of the following is/are incorrect: