Which Statement About the Blood-Brain Barrier Is True

question 138

Multiple Choice

Which statement about the blood-brain barrier is true?

• A) It is a part of the immune system that involves the release of antibodies to protect the brain from infectious agents.
• B) It is a property of the closely packed endothelial cells of the walls of brain capillaries that prevents large molecules from entering the brain.
• C) It is a property of the blood vessels of the brain that promotes the diffusion of nutrients into the tissue of the brain.
• D) It is a property of neurons that prevents them from accidentally releasing their neurotransmitters into the blood circulation.

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Definitions:

Jump

Jump refers to the physical action of propelling oneself off the ground through the muscular force, typically using the legs.

Bone Remodeling

The process by which bone tissue is continuously renewed through the resorption and formation of bone, maintaining bone strength and calcium homeostasis.

Osteoporosis

A bone disease characterized by decreased bone density and mass, leading to increased fragility and risk of fractures.