The Diagram Depicts Key Elements Involved in Processing Pain

question 171

Multiple Choice

The diagram depicts key elements involved in processing pain. Which answer choice correctly labels the numbers in the drawing?

• A) 1, somatosensory cortex; 2, thalamus; 3, A-delta fibers (fast); 4, C fibers (slow)
• B) 1, somatosensory cortex; 2, nociceptors; 3, C fibers (fast); 4, A-delta fibers (slow)
• C) 1, substance P pathway; 2, thalamus; 3, bipolar fibers (fast); 4, C fibers (slow)
• D) 1, nociceptors; 2, thalamus; 3, C fibers (fast), 4, A-delta fibers (slow)

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Definitions:

Physiological Responses

Automatic reactions of the body to the environment, including heartbeat, breathing rate, and muscle tension among others.

Emotion-Arousing

Referring to stimuli or situations that evoke an emotional response.

Parasympathetic Activity

The aspect of the autonomic nervous system that conserves energy by slowing the heart rate, increasing intestinal and gland activity, and relaxing sphincter muscles.

Physiological Response

Bodily reactions, such as changes in heart rate, breathing, and hormone levels, to stimuli or activities.