Author Question: Molecules that can cross the blood-brain barrier are usually ____. a. large, uncharged molecules, ... (Read 182 times)

mynx · **on:** Jun 22, 2018

Molecules that can cross the blood-brain barrier are usually ____.

a. large, uncharged molecules, such as lactose
b. large, charged molecules
c. neurotransmitters, such as dopamine
d. molecules that can dissolve in the fats of the capillary walls

Question 2

What happens to a virus that manages to cross the blood-brain barrier and enter the brain?

a. It is quickly destroyed by natural killer cells.
b. It gets trapped in a neuron, and then both are destroyed by natural killer cells.
c. It gets trapped in a glial cell, and then both are destroyed by natural killer cells.
d. It remains there and may cause negative effects several years later.