Type O negative blood (red cells) can be transfused to patients of all blood types. It is always in great demand and often in short supply. Type AB positive plasma can be transfused to patients of all other blood types. AB plasma is also usually in short supply.
Blood-brain barrier. A blockade of cells separating the circulating blood from elements of the central nervous system (CNS); it acts as a filter, preventing many substances from entering the central nervous system.
The function of the blood-brain barrier is to. A) keep neurons from innervating blood vessels. B) prevent all contact between bloodborne molecules and brain tissue. C) help protect the central nervous system. D) provide an impenetrable barrier between blood and brain, because the brain gets all its.