The pulmonary arteries
1*carry blood away from the lungs
2*contain oxygen-poor blood
3*pump blood to the heart
4*all of the above

Which of the following requires the action of a first class lever in the body

What is the most common blood type in the u.s.?

What should you not do when doing abdominal workouts? a. keep your chin off your chest b. keep your head aligned with the spine c. put pressure on your neck d. all of the above