Blood Vessels, part 1 - Form and Function: Crash Course A&P #27
Now that we've discussed blood, we're beginning our look at how it gets around your body. Today Hank explains your blood vessels and their basic three-layer structure of your blood vessels....
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No doubt about it, your heart is a champion. It electrifies itself, it maintains your blood pressure, it keeps your blood moving, and it’s got like a nice shape you can put some chocolates inside of and give to people you like. But the circulatory system is much, much more than just that pump. Because the heart also needs a network to actually send all that blood through, right? Cue the blood vessels. Although it’s easy to think of them as a glorified plumbing system for your body, that’s not a very good analogy. These aren’t just passive tubes made merely to carry liquid around, like the pipes behind your walls at your home. Blood vessels are actually active, dynamic organs, capable of contracting and expanding as they deliver oxygen and nutrients ...
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No doubt about it, your heart is a champion. It electrifies itself, it maintains your blood pressure, it keeps your blood moving, and it’s got like a nice shape you can put some chocolates inside of and give to people you like. But the circulatory system is much, much more than just that pump. Because the heart also needs a network to actually send all that blood through, right? Cue the blood vessels. Although it’s easy to think of them as a glorified plumbing system for your body, that’s not a very good analogy. These aren’t just passive tubes made merely to carry liquid around, like the pipes behind your walls at your home. Blood vessels are actually active, dynamic organs, capable of contracting and expanding as they deliver oxygen and nutrients ...
