Gah! Cavity Sam right here isn’t doing so nice. He is bought junk in his physique that positively shouldn’t be there. However, you understand, just like the fork and the knife within the stomach and the heartburn and the jackhammer head are simple issues to repair as a result of Sam’s physique doesn’t come shut to the unbelievable complexity of what is going on on inside you proper now. Your physique is superior, actually. The quantity of stuff occurring at any given time to maintain you alive and functioning is awe-inspiring. Attempting to control the tiny little tweezers so you possibly can retrieve the nail from poor Sam’s fingers is nothing in comparison with the problem of simply attempting to grasp the techniques that hold you working. The human physique consists of 1000’s of intricate items of organic equipment, which is a part of why we depend on two twin disciplines to speak about it right here on Crash Course: anatomy and physiology. Anatomy is the examine of the construction and relationships between physique elements, whereas physiology is the science of how these elements come collectively to operate and hold that physique alive. From grave robbers to microscopes, these fascinating disciplines have come a great distance and we’re nonetheless discovering new issues about the way it all works. I am not going to mislead you, it is robust. We’ll construct on issues that you simply realized in biology and chemistry and you will study extra about cell specialization, how your epithelial tissue creates order out of the mayhem of your physique, and take a look at the vital safety you get out of your integumentary system. And by the tip of this course you are gonna perceive extra about all the difficult issues your physique is as much as proper now when you’re sitting there at dwelling watching this video, and perhaps you will respect what a wondrous factor that physique of yours really is. To be clear, that’s not an actual x-ray. It is Photoshop. So be part of us for a brand new yr of Crash Course the place I, Hank Inexperienced, speak about all of this… stuff and hopefully assist us all perceive a bit of extra about ourselves with Crash Course: Anatomy and Physiology. (Sport buzzes) Duhh! Homeostasis.