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.
C
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Between the ceiling of the top floor and the bottom of the roof is a space called the ____, which is often the route of major fire extension.
A. pipe chase B. gable C. subroof D. cockloft
After periodontal debridement, most soft tissue healing is by
A) periodontal regeneration. B) periodontal ligament regeneration. C) long junctional epithelium. D) reattachment of diseased epithelium.
Teeth that have an abscess, using the Universal Charting system, are marked using which symbol?
the entire root circled in red the entire tooth circled in red an "X" over the apex the apex of the tooth circled in red
When a plaster model is curing, it will undergo a(n) _________ effect
reactionary endothermic binary exothermic