Evaluate the Expression $$- 1 - 2 - 4$$ A) -3
B) 7
C) 1
D) -6
E) -7

question 45

Multiple Choice

Evaluate the expression. $$- 1 - 2 - 4$$

• A) -3
• B) 7
• C) 1
• D) -6
• E) -7

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Definitions:

Meningiomas

A type of brain tumor that arises from the meninges, the protective membranes that cover the brain and spinal cord.

Metastatic

Metastatic refers to the process by which cancer cells spread from the original (primary) site to other parts of the body, forming new (secondary) tumors.

Blood-Brain Barrier

A semipermeable barrier between the brain's blood vessels and the brain tissue that prevents certain substances from passing through.

Astrocytes

Star-shaped glial cells in the brain and spinal cord involved in biochemical support of endothelial cells and repair processes in the central nervous system.