What are Blood Types?
Quick Questions explains why, when it comes right down to it, there are really only eight kinds of people in the world. ---------- Like SciShow? Want to help support us, and also get things...
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In a lot of important ways, human beings are pretty similar to one other. But when it comes to blood, there are definitely different types. Eight, to be exact. Our different blood types stem from the fact that we all have immune systems. And while they work equally well, they’re not the same. All of the cells in your body are covered in antigens -- these are special protein markers that function sort of like name tags, saying “These cells belong to you.” When your immune system detects antigens that aren’t familiar, it triggers the release of antibodies that tag foreign invaders and mark them for termination! Now, there are two main types of antigens that form on your red blood cells. They’re called agglutinogens; they activate antibodies that smo...
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In a lot of important ways, human beings are pretty similar to one other. But when it comes to blood, there are definitely different types. Eight, to be exact. Our different blood types stem from the fact that we all have immune systems. And while they work equally well, they’re not the same. All of the cells in your body are covered in antigens -- these are special protein markers that function sort of like name tags, saying “These cells belong to you.” When your immune system detects antigens that aren’t familiar, it triggers the release of antibodies that tag foreign invaders and mark them for termination! Now, there are two main types of antigens that form on your red blood cells. They’re called agglutinogens; they activate antibodies that smo...
