Medicine

Medicine
Discuss the blood-brain barrier and how it protects the brain
The BBB restricts the entry to the brain of some blood-borne substances while allowing others to
enter. You should discuss how the structure of the BBB prevents the entry of some molecules but
allows others through. You should discuss why this discrimination is necessary. You could discuss
the entry of drugs, both those used as medicines and those sold illegally. You may choose to discuss
the BBB in newborn babies, or how it makes the treatment of some neurological disorders difficult,
or how the CSF is made and differs from blood. You could describe the blood supply to the brain.
(Do not merely describe the brain anatomy in the manner found in a textbook).