Saturday, 29 September 2012

BBB

The Blood Brain Barrier





The meaning: A semipermeable barrier between the blood and the brain produced by the cells in the walls of the brain's capillaries.

Let's discuss about the function of BBB :

1.Protect the brain from the foreign substances.
2.Maintains a constant environment for the brain.
3.Protect the brain from hormones and neurotransmitter in the rest of the body.

However, BBB actually:

-selectively permeable to the OXYGEN, CARBON DIOXIDE AND GLUCOSE...

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