Term | Definition |
Aortic Valve | flap located between the left ventricle of the heart and the aorta |
Arrhythmias | irregular or abnormal heart rhythm |
Arteries | blood vessels that carries blood AWAY from the heart |
Capillaries | TINY blood vessels that connect arterioles and venules and allows for exchange of nutrients and gasses between the blood and the body cells |
Circulatory System | AKA the cardiovascular system. Consists of the heart, blood vessels, and blood. It transports oxygen and nutrients to the body cells and transports CO2 away from body cells |
Diastole | relaxation of the heart |
Endocardium | membrane lining of the inside of the heart |
Left Atrium | receives oxygenated blood from the lungs (upper left of the heart) |
Left Ventricle | receives blood from the left atrium and pumps the blood into the aorta for transport to the body cells. |
Mitral Valve | located between the left atrium and left ventricle. |
Myocardium | thickest and muscular layer of the heart |
Pericardium | sac that covers the outside of the heart |
Pulmonary valve | between the right ventricle and the pulmonary artery. |
Right Atrium | receives oxygenated blood from the body, located in the upper right of the heart |
Right Ventricle | receives blood from the right atrium and pumps the blood into the pulmonary artery which feeds into the lungs where the blood can be oxygenated; it is located in the lower right portion of the heart |
Septum | muscular wall that separates the heart into right and left; it prevents blood from moving between the right and left sides |
Systole | when the ventricles contract |
Tricuspid Valve | located between the right atrium and right ventricle |
Veins | vessels that carry blood back to the heart |