Potassium, small amino acids, and metabolic waste such as urea
The blood-brain barrier prevents various substances that could be poisonous to brain tissue (toxins), as well as many agents of infection, from crossing from the blood stream into the brain tissue.
The "blood/brain barrier" prevents most particals like bacteria from entering the brain.
Blood brain barrier
blood follows the moving of sugar
The Blood-Brain Barrier (BBB). This is actually a good website describing it : http://faculty.washington.edu/chudler/bbb.html
The blood-brain barrier is a protective mechanism that helps maintain a stable environment for the brain by regulating the passage of substances from the blood into the brain. It prevents harmful substances from entering the brain while allowing essential nutrients to pass through.
Netilmicin does not cross the blood-brain barrier.
Insulin does crosses the blood brain barrier. Insulin crosses the blood brain barrier through the process of receptor-mediated transcytosis.
The Barrier of Blood - 1913 was released on: USA: November 1913
Area postrema doesn't have blood brain barrier
The blood brain barrier
The blood-brain barrier (BBB) is a diffusion barrier, which impedes influx of most compounds from blood to brain. Three cellular elements of the brain microvasculature compose the BBB-endothelial cells, astrocyte end-feet, and pericytes (PCs). Tight junctions (TJs), present between the cerebral endothelial cells, form a diffusion barrier, which selectively excludes most blood-borne substances from entering the brain. Astrocytic end-feet tightly ensheath the vessel wall and appear to be critical for the induction and maintenance of the TJ barrier, but astrocytes are not believed to have a barrier function in the mammalian brain.Read more: What_is_the_structure_of_blood_brain_barrier