Which of the Following Is True of the Blood-Brain Barrier

question 20

Multiple Choice

Which of the following is true of the blood-brain barrier?

• A) The barrier is uniform throughout the brain.
• B) The barrier is selectively permeable.
• C) The barrier functions to regulate the chemical composition of the cerebrospinal fluid.
• D) The barrier is formed by Schwann cells that line the capillaries of the brain.
• E)The barrier is formed by astrocytes.

Understand the concept of pKa and its relevance in organic chemistry.

Identify key functional groups in pharmaceutical compounds and understand their role in drug activity.

Understand the concept of degrees of freedom in hypothesis testing.

Apply confidence intervals to estimate the population mean.

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Definitions:

Premature Death

Dying earlier than the statistically expected age, often due to factors like disease or accidents.

Teratogenic Agents

Substances that can cause developmental malformations (birth defects) in an embryo or fetus when exposed during pregnancy.

Physiological State

The condition of the body at a given time, including its physical and chemical processes.