What is anatomy of massage?

Anatomy, as far as Massage Therapy is concerned, is the same and anatomy and physiology as it is taught in high school and college. This Western approach is has traditionally evolved from the Greek and Roman medical practices. The only exception is if you study Asian bodywork, like Traditional Chinese Medicine (TCM). They will have a different perspective on the anatomy of the body and how it works. Other Eastern modalities that will have a different perspective are Ayurveda - which focuses on Chakras and the Tridoshas - and Thai Massage. Thai massage will have a very Western view of the anatomy, but a different view on how it sees the functions of the body as related in what they call the Sen Sib lines.