Aorta ✔✔Heart to body
Vena cava ✔✔Body to heart
Pulmonary vein ✔✔Lungs to heart
Pulmonary artery ✔✔Heart to lungs
Atrioventricular valve ✔✔Valve atria to ventricles
Semilunar valve ✔✔Valve ventricles to arterys
Diastole ✔✔Relaxed atria and ventricles
Ventricular systole ✔✔Contraction of ventricles
Atrial systole ✔✔Contraction of atrium
Sinoatrial node (SAN) ✔✔Wave of excitation actors atria causing them to contract
Atrioventricular node (AV) ✔✔Wave of excitation along purkyne (in septum)tissue to apex causing
ventricles to contact
Apex ✔✔Bottom of heart
Myogenic ✔✔Cells conduct electricity and initiate own contraction