Norm hosts a mini game show where Shaun, Terence and newbie Jarrod test their knowledge of some pathological jargon. Terence explains how Viagra works to introduce smooth muscle dilation and intracellular signalling cascades. Finally, the boys continue the conversation on human development, in particularly what the three unique embryological layers (ectoderm, mesoderm and endoderm) end up forming in the human body.  --- Send in a voice message: https://anchor.fm/shaun--norm-and-terence/message