The ___________, Which Is Comprised of _________, Restricts the Diffusion

question 99

Multiple Choice

The ___________, which is comprised of _________, restricts the diffusion of certain molecules and microbes from the circulatory system, protecting the brain from chemical compounds that might otherwise interfere with neuronal activity.

• A)sodium-potassium pump; astrocytes
• B)blood-brain barrier; astrocytes
• C)myelin sheath; oligodendrites
• D)lipid bilayer; oligodendrites

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Definitions:

Price/earnings Ratio

A valuation metric for companies, calculated as the market value per share divided by the earnings per share.

Excess Cash

Refers to the amount of cash held by a company that exceeds the normal operational needs, often indicating a potential for investment, distribution to shareholders, or acquisition.

Dividend

A part of a company's profits distributed to its shareholders, usually four times a year.

Share Repurchase

A process where a company repurchases its own stock from the market, leading to a decrease in the total shares available publicly.