readalot
Member
Systemic or local is the same thing, so it is about the substance itself, you say.
The human knee: A window on the microvasculature - PMC
In synovial joints, the lining cells do not have tight junctions with their neighboring cells and they have no underlying basement membrane. Therefore, the synovial fluid within the articular cavity is continuous with the interstitial fluid of the ...
pmc.ncbi.nlm.nih.gov
See Section The Ischemic Knee