Immune System, part 1: Crash Course A&P #45
Our final episodes of Anatomy & Physiology explore the way your body keeps all that complex, intricate stuff alive and healthy -- your immune system. The immune system's responses begin with...
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You may not know it, but your body is engaged in a never-ending battle.You are literally covered in staph and strep and e coli, and all sorts of dubious charactersthat are intent on using you, and your body’s many resources, to feed themselves, find shelter,and reproduce as much as they want.And, hey, we all gotta make a living. But it is not your job to give these guys a free lunch.So your body has developed a three-part policy toward these shady customers, and its enforcementis handled by your immune system.The immune system is different from all the other systems we’ve talked about this yearin that it’s not a specific, tissue-organ-system kind of system.Instead, it involves a whole bunch of different tissue groups, organ systems, andspecialized-but-widely-dist...
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You may not know it, but your body is engaged in a never-ending battle.You are literally covered in staph and strep and e coli, and all sorts of dubious charactersthat are intent on using you, and your body’s many resources, to feed themselves, find shelter,and reproduce as much as they want.And, hey, we all gotta make a living. But it is not your job to give these guys a free lunch.So your body has developed a three-part policy toward these shady customers, and its enforcementis handled by your immune system.The immune system is different from all the other systems we’ve talked about this yearin that it’s not a specific, tissue-organ-system kind of system.Instead, it involves a whole bunch of different tissue groups, organ systems, andspecialized-but-widely-dist...
