One of the Challenges Associated with the Successful Use of Chemotherapy

question 1

Multiple Choice

 One of the challenges associated with the successful use of chemotherapy for treating brain tumors is the fact that

• A) no known chemotherapy agents are effective against the types of tumors that arise in the brain.
• B) no chemicals are ever able to pass from the blood supply to the brain.
• C) many circulating chemicals are not able to enter the brain.
• D) chemicals introduced to the brain do not pass through neural membranes.

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Definitions:

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