Question

question 18 (multiple choice worth 4 points) a person took pain - relieving medication for a sore throat. a short while after taking the medicine, the pain was dramatically reduced. a few hours later, the pain came back. thinking about the parts and functions of the nervous system, which of the following is the best explanation of how pain - relieving medicine works? pain relief medication immediately heals the affected area, which stops the pain. pain relief medication temporarily stops the brains ability to receive messages from the rest of the nervous system. pain relief medication temporarily blocks the transmission of pain messages from sensory neurons. pain relief medication temporarily speeds up the transmission of pain messages from motor neurons.

Explanation:

Pain - relieving medications typically work by blocking the transmission of pain messages from sensory neurons. When a person takes such medication, it temporarily stops the pain signals from reaching the brain, providing relief. Once the effect of the medication wears off, the pain messages can resume being transmitted and the pain returns.

Answer:

Pain - relieving medication temporarily blocks the transmission of pain messages from sensory neurons.