Heart Crossword

1. valve Flaplike structure in the wall of the aorta near its origin that prevents blood from returning to the left ventricle of the heart; also called the aortic semilunar valve.
3. valve Heart valve between the left atrium and the left ventricle; also called the bicuspid valve or left atrioventricular (AV) valve.
6. Visceral part of the pericardium on the surface of the heart.
10. Inner lining of the heart chambers
11. Major systemic artery that receives blood directly from the left ventricle.
13. Membrane that forms the outer wall of the pericardial cavity.
14. Cavity, such as a brain ventricle that contains cerebrospinal fluid, or a heart ventricle that contains blood.
18. Potential space between the visceral and parietal pericardial membranes.
20. Membrane that covers the surface of the heart.

2. tendineae Fibrous strings attached to the cusps of the tricuspid and mitral valves in the heart.
3. Muscle layer of the heart.
4. Either of the two upper chambers of the heart.
5. valve Valve leading from the right ventricle to the pulmonary trunk; also called the pulmonary semilunar valve.
7. artery An artery that supplies blood to the wall of the heart.
8. muscle Muscle that extends inward from the ventricular wall of the heart and to which the chordae tendineae attach.
9. A solid, wall-like structure which separates the atrium and ventricle on the right side from their counterparts on the left.
12. cavae One of two large veins (superior and inferior) that convey oxygen-poor blood to the right atrium of the heart.
15. valve Heart valve between the right atrium and the right ventricle also called the right atrioventricular (AV) valve.
16. sinus Large vessel on the posterior surface of the heart into which cardiac veins drain
17. vein A vein that drains blood that has passed through myocardial capillaries.
19. Serous membrane that surrounds the heart.