First, as the terms suggest, bbb separates blood from brain matter while bcb separates blood from csf in the ventricles and sub-arachinoid spaces in the cns.
But the paramount difference is int the permeability of the bcb and the almost perfect impermeability of bbb due to the tight juncttions between the aatrocytes that protect the brain
The CraniumThe brain is protected by the blood brain barrier.
Dopamine can't pass through the brain blood barrier while L-Dopa can.
The blood brain barrier
Normally there are no red blood cells in cerebrospinal fluid, but some kinds of injuries can cause bleeding into the cerebrospinal fluid in which case there will be red blood cells.
Cerebrospinal fluid is formed from blood by the choroid. This is usually produced through the process of filtration of blood in the brain.
the blood-brain barrier
There are three things that protect the CNS; brain and spinal cord. Bone which is the skull for the brain and the vertebrae for the spinal cord, meninges which is a protective membrane, and the spaces between the meninges are filled with cerebrospinal fluid for cushion and protection.
What is the difference between a blood transfusion and dialysis
The choroid plexus is in contact with the cells lining the ventricles, which helps in the formation of cerebrospinal fluid. The capillaries of the choroid plexus differ significantly from those found elsewhere in the body. As a result, drugs carried in the bloodstream may not effectively penetrate brain tissue. This phenomenon is referred to as the blood-brain barrier. In short, the choroid plexus helps create the barrier, as it is through it's capillaries that the barrier is formed.
Blood
what is the difference between blood clot formation and the process of blood agglutination
A difference in temperature.