Three Weeks After Implanting Olfactory Ensheathing Cells into the Injured

question 7

Multiple Choice

Three weeks after implanting olfactory ensheathing cells into the injured spinal cord of a rat, a research scientist injects a retrograde label to trace neuronal connections through the lesion. Microscopic examination indicated no movement of the dye through the lesion because of scar tissue that had formed at the site of the injury. The scar tissue is most likely formed by which of the following cell types?

• A) Schwann
• B) Astrocyte
• C) Satellite
• D) Ependymal
• E) Purkinje

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Definitions:

Market Demand

This refers to the total demand for a product or service by all consumers in a particular market.

Competitive Firm

A company that operates in a market where it must compete with other firms for customers, characterized by the inability to control market prices.

Higher Profits

Increased earnings resulting from a rise in revenue, a decrease in costs, or both.

Resource Cost

The total cost associated with the utilization of resources such as labor, capital, and materials in the production of goods and services.