Travis is taking a long run, and his muscle tissue needs more oxygen. He is breathing heavily and taking in a lot of oxygen. How does this exercise affect circulation?
Answer
A
Travis’s heart pumps more quickly to allow oxygen to be removed from the air and transported to the tissue.
B
Travis’s heart pumps more slowly to give the blood cells time to pick up the oxygen and drop it off at the tissues.
C
Travis’s coronary arteries become blocked, so blood travels to other muscles, where it is necessary.
D
Travis’s heart starts angiogenesis so that he has more vessels to transport blood to the tissues.