Michael explains how anesthesia works. He discusses how even though we've used anesthesia for decades we haven't completely understood how it works until recently.
Jeremy consults with his doctor. She encourages him to increase his dosage. It seems that the reason for this is for scientific findings, rather than Jeremy's well-being.
This clip explores the structure of the human skin to explain how wounds heal in four main stages: Hemostasis, Inflammation, Proliferative, and Remodeling.