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