Cranial Nerves. To know as much as possible about the brain. Kinda like a brain expert although I'm not sure that will ever happen bc the God makes our brains so complex, and that's exactly why I love studying it!
This is a great picture I found that shows the structure and division of the spinal cord, along with all of its functions. Its very clear and simple - making it very easy to learn for nclex. And heres a tip for you - Ive seen many nclex practice questions that focus on Spinal Cord Injury affecting C1-4, which affect breathing.