Multiple ChoiceWhich veins are responsible for returning blood from the lower limbs to the inferior vena cava?60views
Multiple ChoiceWhich of the following blood vessels is a direct branch of the ascending aorta?73views
Multiple ChoiceWhich of the following describes why the body might need to increase vessel length?148views
Multiple ChoiceWhich vein is the exception and carries oxygenated blood from the lungs back to the heart?67views
Multiple ChoiceWhich type of blood vessel carries blood back to the heart through a series of one-way valves?63views