Introduction to Anatomy & Physiology: Crash Course A&P #1
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========== I’d like you to take a second and really
look at yourself. I don’t mean take stock of your life, which
really isn't any of my business, but I mean just look at your body. Hold up a hand and wiggle it around. Take a sip of
water. Hold your breath. Sniff the air. These things are so simple for most of us
that we don’t give them a moment’s thought. But each one of those things is, oh, SO much
more complex than it feels. Every movement you make, every new day
that you live to see, is the result of a collection of systems working together to
function properly. In short, you, my friend, are a magnificent
beast. You are more convoluted and prolific and
polymorphously awesome than you probably even dare to think. For instance, did you know that, if ...