Cardiac muscle action potentials are longer in duration than those of skeletal muscle.The longer action potential does not allow the muscle to __________.
Which of the following cardiovascular variables does NOT increase as a result of chronic exercise while performing a single bout of maximal exercise?
Myocardial oxygen consumption is best estimated from __________.
During mild to moderate exercise, pulmonary ventilation increases primarily as a result of increased __________.
The anaerobic threshold occurs at the onset of __________.
The C-shaped cartilages of the trachea allow all of the following to occur EXCEPT __________.