Why does one continue to breathe heavy after rigorous physical activity has stopped?
A)The diaphragm is waiting for its acetylcholine to run out.
B)The body requires more oxygen to restore levels of ATP and creatine phosphate.
C)The lungs can't stop breathing until the heart rate slows down.
D)Myosin heads need more oxygen to fully detach from actin.
E)The kidneys require oxygen to dispose of excess lactic acid.

Question

Quizplus · Accepted Answer

During rigorous physical activity, the body uses up oxygen to produce energy in the form of ATP and creatine phosphate. After the activity has stopped, the body needs to restore these energy stores, which requires more oxygen. This increased oxygen demand is what causes the continued heavy breathing even when the activity has ceased.

Why Does One Continue to Breathe Heavy After Rigorous Physical