Avi Broke His Ankle Skiing

question 85

Multiple Choice

Avi broke his ankle skiing. At first, he felt a sharp and intense pain. The next day, the sharp pain was gone, but his ankle throbbed almost all of the time. The sharp immediate pain was due to ____________; the later throbbing pain was due to ____________.

• A) nonmyelinated axons; myelinated axons
• B) myelinated axons; nonmyelinated axons
• C) pain receptors; pressure receptors
• D) pressure receptors; pain receptors

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Definitions:

Voluntary Exchange

A transaction where both parties agree to trade goods or services by choice.

Perfect Competition

A market structure where many firms sell identical products, entry and exit are easy, and no single buyer or seller can affect prices.

Marginal Cost (MC)

The increase in total cost that results from producing 1 more unit of output. Marginal costs reflect changes in variable costs.

Marginal Cost

The financial increment incurred by the production of an extra unit of a product or service.