Author Question: Which is TRUE about primary malignancies of the nervous system? a. They are very common. b. The ... (Read 59 times)

panfilo · **on:** Jun 27, 2018

Which is TRUE about primary malignancies of the nervous system?

a. They are very common.
b. The most common is medullablastoma.
c. The most common is neuroblastoma.
d. The most common is glioblastoma.

Question 2

Chemotherapy can have a negative double effect on the brain for what reason?

a. The treatment itself penetrates the brain by destroying the brain-blood barrier.
b. The treatment itself may not penetrate the brain, but it destroys the brain-blood barrier.
c. The treatment itself may not penetrate the brain, but it can weaken the brain-blood barrier.
d. The treatment is seldom successful because the brain-blood barrier prevents most of it from reaching the target areas.