The Blood-Cerebrospinal Fluid Barrier

question 16

Multiple Choice

The blood-cerebrospinal fluid barrier

• A) is the same thing as the blood-brain barrier.
• B) is due mainly to tight junctions between endothelial cells of the capillaries throughout the brain tissue.
• C) protects the neurons of the brain and spinal cord from potentially harmful substances in the blood.
• D) is another name for cranial meninges.

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Definitions:

Dilation of the Pupils

The expansion or widening of the pupils, which can occur in response to various factors such as changes in light, emotional states, or the effect of certain drugs.

Cognitive Component

Pertains to the beliefs, thoughts, and knowledge about an object, person, situation, or concept that are part of an attitude.

Physiological Component

Aspects of bodily functions and processes that contribute to physical health or activity.

Polygraph

A device, also known as a lie detector, that measures and records several physiological indicators such as blood pressure, pulse, respiration, and skin conductivity while the subject is asked and answers a series of questions.