Abstract: In previous section,the theories and promoting factors for functional recovery of the CNSfollowing injury,as well as the development and concept of the brain plasticity theory are intreduced.This section will discuss the anatomy and physiology underlying the brain plasticity theory and thepositive evidence for the theory in both animal and human studies. Internal and external factors which af-fect the brain plasticity will be illustrated as well,based on the Luria’s functional reorgnization theory.

Key words: CNS, injury, brain plasticity, functional reorganization