Human Anatomy Chapter 12 Crossword
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
                            
 
 
Down: 1) Tissue mass embedded in the posterial wall of the right atrium which provides the stimulus for the contraction of the heart. 2) Simple squamous epithelium that lines the heart and is continuous with the endothelium of the great vessels.3) Regions where adjacent cardiocytes interlock and where gap junctions permit the movement of ions and action potentials between the cells. 5) One of the valves that prevent backflow into the atria during ventricular systole.8) Fibrous sac that surrounds the heart and whose inner, serous lining is continuous with the epicardium.9) One complete heartbeat, including atrial and ventricular systole and diastole.11) Thin-walled chambers of the heart that receive venus blood from the pulmonary or systemic circuit.12) Period of cardiac contraction.13) Serous membrane covering the outer surface of the heart. Across: 4) Period of cardiac relaxation.6) Graphic record of the electrical activities of the heart, monitored at locations on body surfaces.7) Amount of blood ejected by the left ventricle each minute.10) One of the large, muscular pumping chambers of the heart that discharges blood into the pulmonary or systemic circuit. 14) Specialized conducting cardiocytes in the ventricles.15) Cardiac muscle tissue of the heart.
 

 

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