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Circulatory 6:8 Study Guide 1. ______________The circulatory system is also known as the? 2. The circulatory system consists of the? ___________________ ____________________ ____________________ 3. What is the function of the Circulatory system? _____________________________________________________________ _____________________________________________________________ _____________________________________________________________ 4. Describe the heart. _____________________________________________________________ _____________________________________________________________ _____________________________________________________________ 5. Where is the heart located? _____________________________________________________________ _____________________________________________________________ 6. Three layers of tissue form the heart. Define each. Endocardium_________________________________________________ _____________________________________________________________ _ Myocardium__________________________________________________ _____________________________________________________________ Pericardium__________________________________________________ _____________________________________________________________ 7. The muscular wall that separates the heart into a right side and left side is called the ______________________________it prevents blood from moving between the right and left sides. 8. What is the top part of the septum called? _______________________________. 9. What is the lower part of the septum called? _______________________________. 10. The heart is divided into 4 parts or chambers. What are the two upper chambers called? _______________________, ___________________________ 11. What are the lower two chambers called? _____________________. ______________________________ 12. Which chamber receives blood as it returns from the body cells? __________________________________ 13. Which heart chamber receives blood from the right atrium and pumps the blood into the pulmonary artery, which carries the blood to the lungs for oxygen? _________________________________________________________ 14. Which chamber receives oxygenated blood from the lungs? __________________________________ 15. What type of valves in the chambers of the heart keep the blood flowing in the right direction? _________________________________ 16. Which heart valve is located between the right atrium and right ventricle? _______________________________________ 17. Which heart valve is located between the right ventricle and the pulmonary artery? __________________________________ 18. Which blood vessel carries blood to the lungs? _________________________________________________ 19. Which heart valve is located between the left atrium and left ventricle? ______________________________ 20. Which heart valve is located between the left ventricle and the aorta? ___________________ 21. Which is the artery is the largest in the body? ____________________ 22. What is diastole? _______________________________________________________ _______________________________________________________ 23. What is systole?_________________________________________________ _______________________________________________________