Which of the following is true of a benign brain tumor?
A) Benign tumors cause damage through glutamate release.
B) Benign tumors damage brain tissue by infiltration.
C) The flow of CSF can be increased by a growing benign tumor.
D) Benign tumors are encapsulated.
E) Benign tumors induce apoptosis cascades which kill neurons.

Question

Quizplus · Accepted Answer

Benign tumors are encapsulated, meaning they are contained within a distinct boundary and do not infiltrate surrounding brain tissue. Option A is incorrect because the release of glutamate is more commonly associated with malignant brain tumors. Option B is incorrect because infiltration is a characteristic of malignant tumors, not benign ones. Option C is incorrect because a growing tumor can actually impede the flow of CSF, leading to increased pressure within the brain. Option E is incorrect because apoptosis (programmed cell death) is not a common feature of benign brain tumors.

Which of the Following Is True of a Benign Brain