Activity 8: it's Matching Time Directions: Match the structure of the heart and is function. On the blank before each number, write the letter corresponding to the appropriate structure in the box 1. It is the largest artery in the body which brings oxygen-rich darood to all parts of the body 2. It is a muscular wall that divides the heart into its right and left sides 3. It brings back oxygen-rich blood from the lungs to the left atrium of the heart. 4. It is the largest vein located at the upper part of the heart and brings oxygen-poor blood from the head and arms. 5. It carries oxygen-poor blood from the right ventncle of the heart to the lungs. 6. These are one-way doors that prevent the backflow of blood between the heart chambers. 7. These are the pumping chambers of the heart. 8. It is the largest vein located at the lower part of the heart and brings O2--poor blood from the lower parts of the body 9. These are the receiving chambers of the heart. 10. It refers to the blood that passes the left side of the heart 11. It is the protective sac that encloses the heart 12. It refers to the blood that passes the right side of the heart. 13. It pumps the blood to the lungs. 14. The part of the heart that accepts blood from the body. 15. It is the valve found in between the right atrium and right ventricle​