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With Valentine’s Day approaching many people are thinking about their heart from a romantic point of view, but what about from a biological perspective? This month’s science behind discusses the various parts and functions of the heart, as well as providing some tips on how to best take care of your heart. Have fun exploring the heart with these engaging freebies, videos, and kits!
What is 120/80?
The heart is a pump that keeps blood flowing through the arteries and veins. The pressure of the blood is not steady—pressure surges with each heartbeat. When the heart beats, the blood pressure in the vessels is the highest.
Model Carbonate Blood Buffer
The pH level in blood must be maintained within extremely narrow limits. What is the composition of the major buffer in blood?