1.the blood is pumped to the lungs from the heart through the?
A.aorta
B.pulmonary veins
C.pulmonary arteries
D.vena cavas
2.The first chamber of the heart the blood from the body enters is the?
A.left atrium
B.right atrium
C.left ventricle.
D.right ventricle
3.The only veins in the body that carry oxygenated blood are the?
A.subclavian veins
B.pulmonary veins
C.coronary veins
D.vena cavas
4.The human Heart is?
A.made of muscle
B.a pump
C.has four chambers
D.beats faster when you exercise
E.All of the above
5.The valve between the right atrium and the right ventricle is called the?
A.bicuspid valve
B.tricuspid valve
C.mitral valve
D.None of the above​