5 Questions
The blood stream has a single layer of tightly packed capillary cells.
True
The capillary cells in the blood stream allow high concentrations of pathogens to pass through.
False
The capillary cells in the blood stream are permeable to viruses.
False
The blood stream can be breached by high concentrations of drugs.
False
The capillary cells in the blood stream allow drugs to pass through in high concentrations.
False
Test your knowledge of the blood-brain barrier, a vital component of the body's defense system that protects the central nervous system from harmful substances. Learn how it works and what it keeps out. Take this quiz to find out more!
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