What is the scope of the study of Neuroanatomy?
It is the traditional division of anatomy by systems. Neuroanatomy is simply another name for anatomy of the nervous system - both macroscopic and microscopic. As opposed to anatomy of skeleton and muscles, internal organs and topographical anatomy. And of course one remembers the division of macroscopic anatomy and microscopic (which further goes into cytology and histology). So in summary -- yes, the whole body - but just as far as the nerve cells and structures are involved. And please remember - an extremely precise definition here will defy the reason because a lot of these words and divisions are traditional - therefore to be viewed with their own history of use, which may change with time.
Source: Dorland’s Illustrated Medical Dictionary, Sobotta Atlas of Anatomy and Anatomy Textbook. It also helps if one has attended medical school.