Jonathan Tripped on a Sprinkler During a Game of Flag

question 70

Multiple Choice

 Jonathan tripped on a sprinkler during a game of flag football and felt a sharp pain as he broke his ankle. Later on, after he returned home from the emergency room with a new cast, he felt a dull, aching pain in his broken ankle. Which of the following is the best explanation for Jonathan's experience?

• A) The sharp pain resulted from the transmission of messages along C fibers, and as the rate of signaling dropped, the quality of the pain changed to dull and aching.
• B) The sharp pain resulted from the activation of nociceptors that respond to mechanical injury, whereas the dull pain resulted from the activation of nociceptors that respond to chemicals released by damaged cells.
• C) The sharp pain resulted from the transmission of messages along C fibers, and the dull pain resulted from the transmission of messages along A fibers.
• D) The sharp pain resulted from the transmission of messages along A fibers, and the dull pain resulted from the transmission of messages along C fibers.

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Definitions:

Cubic Meter

A unit of volume in the International System of Units, representing the volume of a cube with edges one meter in length.

Liter

A metric unit of volume equal to one cubic decimeter, commonly used to measure liquids and other volumes in the scientific and commercial worlds.

Snowmelt

The process of snow and ice melting, often contributing to river flow in many parts of the world, and can lead to flooding if rapid.

Groundwater

Water that collects or flows beneath the Earth's surface, filling the porous spaces in soil, sediment, and rock formations.