Relier Pairs Med Term CardiologyVersion en ligne medical terminology of the heart par Dr. David Myers 1 Left AV valve 2 venule 3 aortic valve 4 AV bundle 5 myocardium 6 septum 7 aorta 8 diastole 9 Blood pressure 10 endocardium 11 heart 12 pulse A band of fibers that transmits impulses from the AV node to the top of the interventricular septum. A wall dividing the chambers of the heart. The wave of increased pressure produced in the vessels each time the ventricles contract. The muscular organ with four chambers that contracts rhythmically to propel blood through vessels to all parts of the body. The valve between the left atrium and the left ventricle: the mitral valve: bicuspid. the relaxation phase of the heartbeat cycle. The thin membrane that lines the chambers of the heart and covers the valves. The valve at the entrance to the aorta. the largest artery, receives blood from left ventricle. The force exerted by blood against the wall of a vessel. The thick middle layer of the heart wall composed of cardiac muscle. A small vessel that carries blood from the capillaries to the veins.