Which of the Following Statements Is TRUE Regarding the Blood-Brain

question 72

Multiple Choice

Which of the following statements is TRUE regarding the blood-brain barrier (BBB) ?

• A) The endothelial cells of the BBB are extensively interconnected with tight junctions.
• B) Lipid-soluble compounds can freely diffuse across the endothelial cell membranes.
• C) Endothelial transport across the BBB is highly selective.
• D) The endothelial cells of the BBB contain small numbers of pinocytotic vesicles.
• E) All of these are characteristics of the BBB.

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Definitions:

Egg

An organic vessel containing the zygote in which an embryo develops until it can survive on its own; also, a common food item rich in protein.

Oophor/o

Oophor/o is a prefix related to the ovary or ovaries, utilized in medical terms.

Ov/o

A prefix relating to eggs, used in medical and scientific terms.

Aden/o

A prefix used in medical terminology referring to glands, particularly relating to glandular structures.