Cardiovascular System quiz

Gas (waste) released by body cells, transported via veins to the heart, and then to the lungs for exhalation

• endocardium

• pericardium

• carbon dioxide (co2)

• oxygen

Blood vessels that branch from the aorta and carry oxygen-rich blood to the heart muscle.

• atrioventricular node (AV node)

• coronary arteries

• pacemaker (sinoatrial node)

• pulmonary circulation

Largest artery in the body.

• aorta

• capillary

• deoxygenated blood

• myocardium

Lower tip of the heart.

• atrioventricular bundle (bundle of His)

• diastole

• oxygen

• apex of the heart

Small artery

• arteriole

• venule

• ventricle

• systole

Specialized muscle fibers connecting the atria with the ventricles and transmitting electrical impulses between them. His is pronounced “hiss.”

• capillary

• coronary arteries

• normal sinus rhythm

• atrioventricular bundle (bundle of His)

Specialized tissue in the wall between the atria. Electrical impulses pass from the pacemaker (SA node) through the AV node and the atrioventricular bundle or bundle of His toward the ventricles.

• deoxygenated blood

• murmur

• myocardium

• atrioventricular node (AV node)

One of two upper chambers of the heart

• pulse

• atrium

• endothelium

• mitral valve

Smallest blood vessel. Materials pass to and from the bloodstream

• capillary

• pacemaker (sinoatrial node)

• artery

• arteriole

Blood that is oxygen-poor.

• diastole

• murmur

• deoxygenated blood

• mitral valve