Jonathan Tripped on a Sprinkler During a Game of Flag

question 161

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.

---

Definitions:

Auditory

Pertaining to the sense of hearing or the organs and structures involved in the process of hearing.

Temporal

Relating to time or denoting the temples of the skull.

Encephalitis

An inflammation of the brain often caused by infection, leading to symptoms such as fever, confusion, and in severe cases, seizures or neurological issues.

Neurilemma

The outermost layer of nerve fibers, essential for the regeneration and functioning of peripheral nerves.