Students from many types of majors get admitted to medical school and I really do not think it matters whether you are an arts major, science major, pharmacy, nursing , etc. I think it comes down to being passionate and interested in the courses that are within your major and your grades in such courses will reflect such enthusiasm for the subject matter. On top of high GPAs, medical schools are looking for some extra curriculars, volunteer work in hospitals/clinics, research projects, etc. to show you are well rounded, a critical thinker, and have leadership skills as well. I also suggest doing some career shadowing at some point with doctors (if you can with a neurologist or pathologist) is also helpful to explore the clinical side of medicine and see if this is the right path for you.
Since you have a strong interest to become a neurologist/pathologist, I would suggest pursuing majors in behavioral neuroscience or physiology as you get an opportunity to learn more about neurological research from the basic science perspective and acquire skills regarding histopathology by dissecting and analysing brain tissue from animals such as rats, etc. You can also pursue masters and PhD research in areas such as neuroscience if you decide you like research more than pursuing a career in clinical medicine.