Mammalian Heart Definitions 3.0 / 5 based on 1 rating ? BiologyHuman, animal and plant physiologyASOCR Created by: JadeCreated on: 16-01-13 13:47 Aorta the largest artery that has branches leading upwards towards the head and the mainflow downwards to the rest of the body. 1 of 13 Pulmonary Artery Branches after leaving the heart, into two arteries-one taking blood to the left lung and one to the right 2 of 13 Venae Cavae (plural) one bringing blood downwards from the head and the other bringing it upwards from the rest of the body 3 of 13 Pulmonary Vein bring blood back to the heart from the left and right lungs 4 of 13 Coronary Arteries On surface of the heart, they branch from the aorta and deliver oxygenated blood to the muscles of the walls of the heart 5 of 13 Septum Separating the left and right chambers of the heart 6 of 13 Atrio-ventricular valves connection between atria and venricle where blood passes during cardiac cycle 7 of 13 Bicuspid and tricuspid valves Both are atrio-ventricular valves. bicuspid is on the left side, tricuspid on the right 8 of 13 Atrial Systole Muscle in the atrial walls contract which initiaites the cardiac cycle 9 of 13 Ventricular Systole Contraction of the walls of the ventricles 10 of 13 Ventricular Diastole The muscle in the ventricles relax reducing the pressure 11 of 13 SAN Sino-atrial Node. small patch of muscle in the wall of the right atrium that sets the pace for the heart 12 of 13 Purkyne Tissue a bunch of conducting fibres which runs down the septum 13 of 13
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