Exercise Physiology - Multichoice Questions Flashcards
Which phase of the cardiac cycle is the longest?
Diastole
End Diastolic volume - End Systolic volume =?
Stroke Volume
The pulmonary circulation does not encompass which valve?
Mitral valve
Which element of the cardiac conduction system travels along the inter ventricular septum?
Atrioventricular bundle ( bundle of hiss)
The span between the QRS complex and the T wave represents which phase of the cardiac cycle?
Ventricular Systole
Which type of blood vessel allows exchange of nutrients, wastes and blood gases?
Capillaries
Steady- state heart rate can be used to do what?
Predict aerobic capacity
During endurance exercise what happens to the total peripheral resistance?
It decreases
During maximal exercise how much cardiac output is redirected to muscles?
80%
What is the most effective buffer in the body?
Bicarbonate