We humans have somewhat sealed loop of blood circulating around, so how are we able to alter the blood pressure without “opening” a valve somewhere or something like that to let blood out/in(imagine a pipe with a valve)? Where does the pressure come and go to?
In: Biology
Your heart is a muscle. That means it can do less work or more work, depending on the required load. Sometimes we need to fight, sometimes we need to rest, sometimes we need to run.
Our arteries and veins adapted along with the system, so they can sustain rapid changes of pressure.
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