Cardiac System Crossword Puzzle 2

1234567891011121314151617181920212223242526
Across
  1. 2. The ______-Starling mechanism is the relationship between ventricular stretch and contraction in which the force of heart contraction is directly proportional to the initial length of the muscle fiber
  2. 4. The ______ muscle is the extension of the myocardium in the ventricles to which the chordae tendineae attach
  3. 7. (plural = septa) walls or partitions that divide the heart into chambers
  4. 9. ______ veins are vessels that drain the heart and generally parallel the large surface arteries
  5. 12. The cardiac is the depression in the medial surface of the inferior lobe of the left lung where the apex of the heart is located
  6. 13. myocardial _______ cells are the bulk of the cardiac muscle cells in the atria and ventricles that conduct impulses and contract to propel blood
  7. 17. The ______ fibers are specialized myocardial conduction fibers that arise from the bundle branches and spread the impulse to the myocardial contraction fibers of the ventricles
  8. 20. The pulmonary _____ is the blood flow to and from the lungs
  9. 22. The ______ contraction is the initial phase of ventricular contraction in which tension and pressure in the ventricle increase, but no blood is pumped or ejected from the heart
  10. 24. _________ valves are one-way valves located between the atria and ventricles; the valve on the right is called the tricuspid valve, and the one on the left is the mitral or bicuspid valve
  11. 25. _____ sounds are sounds heard via auscultation with a stethoscope of the closing of the atrioventricular valves (“lub”) and semilunar valves (“dub”)
  12. 26. The ______ cardiac vein parallels the right coronary artery and drains blood from the posterior surfaces of the right atrium and ventricle; drains into the coronary sinus, middle cardiac vein, or right atrium
Down
  1. 1. End _____ volume (EDV) is the (also, preload) the amount of blood in the ventricles at the end of atrial systole just prior to ventricular contraction
  2. 3. Ability of cardiac muscle to initiate its own electrical impulse that triggers the mechanical contraction that pumps blood at a fixed pace without nervous or endocrine control
  3. 5. (also, end diastolic volume) amount of blood in the ventricles at the end of atrial systole just prior to ventricular contraction
  4. 6. The _____ cardiac vein is the vessel that parallels and drains the areas supplied by the posterior interventricular artery; drains into the great cardiac vein
  5. 8. Innermost layer of the serous pericardium and the outermost layer of the heart wall
  6. 10. The cardiac _____ is the difference between maximum and resting CO
  7. 11. The _____ septum is a cardiac septum located between the two atria; contains the fossa ovalis after birth
  8. 14. The ______ carneae are ridges of muscle covered by endocardium located in the ventricles
  9. 15. The ______ valve is (also, mitral valve or left atrioventricular valve) located between the left atrium and ventricle; consists of two flaps of tissue
  10. 16. (also, pericardial sac) membrane that separates the heart from other mediastinal structures; consists of two distinct, fused sublayers: the fibrous pericardium and the parietal pericardium
  11. 18. The superior ____ cava is a large systemic vein that returns blood to the heart from the superior portion of the body
  12. 19. The atrioventricular (AV) is a clump of myocardial cells located in the inferior portion of the right atrium within the atrioventricular septum; receives the impulse from the SA node, pauses, and then transmits it into specialized conducting cells within the interventricular septum
  13. 21. The _______ artery is a branch of the left coronary artery that follows coronary sulcus
  14. 23. The anterior interventricular ______ is sulcus located between the left and right ventricles on the anterior surface of the heart