I have a dry erase easel available after the kids go to sleep. I am using it to diagram neural pathways as I study for neuroanatomy. Here is the epicritic pathway, the pathway of discriminative touch: two point tactile discrimination, vibration and proprioception (knowing where your body parts are).
Speaking of which, people with advanced syphilis have a harder time knowing where their feet are, since the spirochete chomps the fasciculus gracilus (which is labeled on the drawing – see?), the pathway that carries this information from the feet to the cerebral cortex. So, victims of advanced syphilis often have a wide stance. I’m just sayin’.