How Does Anesthesia Work? provides a five minute overview of the history of anesthesia and painkillers used during surgeries. The second half of the video explains the basics of the physiology of how anesthesia works. The lesson is appropriate for high school students taking an anatomy and physiology course.
How Does Anesthesia Work? is the twelfth video that I've added to my playlist of TED-Ed science videos. That playlist is embedded below.