In pulmonary (blood) circulation, blood travels from our heart to our lungs and back What is the purpose of our heart pumping blood to our lungs that ultimately
keeps our cells healthy?
a. Our lungs need blood to make oxygen.
b. Our blood goes to the lungs to get carbon dioxide and drop off oxygen.
c. Our lungs need blood to be able to contract and inhale,
d. Our blood goes to the lungs to get oxygen and drop off carbon dioxide.