"Unit 1 Cardiac Anatomy": HTML5 Crossword

Across

1. What is described as a fluid filled sack that encloses the heart for protection? (11)
3. What term means outer layer of the heart? (10)
4. What are the lower and thicker chambers of the heart called? (10)
5. Which main vein brings blood back to the heart from the upper part of the body? (8,4,4)
9. Which major vein brings blood back from the lower part of the body? (8,4,4)
10. What is the main artery that is 3 cm in diameter? (5)
14. What is the special type of muscle that conducts an impulse so it contracts? (7,6)
16. Which valve is on the right side between the atrium and ventricle? (9,0)
17. What is the valve between the left ventricle and aorta? (6,0)

Down

2. What arteries supply the myocardium with oxygen and nutrients? (8,8)
6. What term means inner lining of the heart? (11)
7. Which structure separates the left side of the heart from the right? (6)
8. Which mechanism prevents backflow of blood from one chamber to another? (5)
11. What valve is between the right ventricle and the pulmonary artery? (9,0)
12. What is the valve that has two cusps or points? (8,0)
13. What is the pointed tip of the heart that lies on the diaphragm? (4)
15. What is the other name of the Bicuspid valve? (6,0)