ch5.2 heart

• heart = the pump that pushes blood around the body
• pericardium = membrane enclosing the heart

  • holds heart in place + allows heart to move as it beats
• right atrium = receives deoxygenated blood from the body
• right ventricle = pumps blood into the lungs
• pulmonary artery = carries deoxygenated into the lungs
• pulmonary veins = brings oxygenated blood to heart from lungs
• left atrium = receives oxygenated blood from lungs
• left ventricle = pumps blood into aorta out of body
• aorta = main artery that takes blood to all parts of the body (except lungs)
• superior vena cava = major vein brining blood to heart from upper body
• inferior vena cava = major vein brining blood back to heart from lower body
• valves = prevents backwards flow of blood so blood only flows in one direction
• valves between atria and ventricles = atrioventricular valves
• valves between ventricles and arteries = semilunar valves