Blood–saliva barrier
Semipermeable biological barrier / From Wikipedia, the free encyclopedia
The blood–saliva barrier (BSB) is a biological barrier that consists of the epithelial cell layers of the oral mucosa and salivary glands, and provides physiological separation between blood vessels and the saliva in the oral cavity.[1][2] In Russian academic literature the barrier is usually called the hematosalivary or hematosalivarian barrier.[3][2]