Assertion: central nervous system | /r/HasAspect | special vascular system
Facets:
Source sentences:
text: The CNS has several unique anatomical and physiological characteristics: it is enclosed in bony structures (skull and vertebrae) making it difficult to access; it has a special vascular system which serves as a barrier for drug delivery; and it has limited capacity for repair.
text: The CNS has several unique anatomical and physiological characteristics: it is enclosed in bony structures (skull and vertebrae) making it difficult to access; it has a special vascular system which serves as a barrier for drug delivery; and it has limited capacity for repair.