Hank discusses the various types of connective tissue and explains what the body can and cannot easily break down.

Hank offers a brief history of histology by explaining the technological progress required to make histology a discipline in science today. He mentions key people and events in the discipline's development.

A nerdy man goes on a blind date to a restaurant. The place is great, and the girl is beautiful. If only the two sides of his brain could work together for once.

Derek is tasked with performing a risky surgical procedure in order to remove a spinal tumor from a patient. He and Meredith discuss the problem and potential solutions. During the discussion, Derek draws a diagram of the spine that illustrates the issue the patient is facing. Derek faces a dilemma: if he cuts the cord, he will kill the tumor, but the patient will lose function in both of his legs. Derek tries to find a way to cure the tumor without cutting the cord.

Heinrich Kulver and Paul Bucy guide Angie and Nicky through the structure of the brain. They then explain that the Amygdala is the part of the brain that processes emotional reactions. Watch Thomas Edison's Secret Lab on Netflix, the Kid Genius channel on Xfinity, public television and DVD. Visit EDISONSECRETLAB.COM for games, videos, downloads and more!