Question

1) ____ major blood vessels go from the heart to each lung, and ____ major blood vessels go from each lung to the heart.a) four; fourb) two; twoc) two;fourd) four;two

Answer 1

The major blood vessels that are connected to the heart are the aorta, the superior vena cava, the inferior vena cava, the pulmonary artery (heart to the lungs), and the pulmonary veins (lungs to the heart). Therefore, There are 4 pulmonary veins (2 from each lung) and 2 pulmonary arteries, being the answer the letter b (two and two).