Parietal pain is characterized by:

• A. Diffuse, poorly localized pain
• B. Localized, intense pain from the lining of a cavity
• C. Pain that originates from a muscle
• D. Pain that radiates to the back

Answer: (B)

Parietal pain arises from irritation of the lining of the abdominal cavity (the parietal peritoneum). It is typically well localized to a specific area, often sharp and intense, and is usually worsened by movement or touch. This contrasts with visceral pain, which comes from organs and tends to be dull, cramping, and poorly localized, sometimes felt in a broader area or referred. Pain that originates from muscle is a somatic muscular pain, not the cavity lining, and pain that radiates to the back is more typical of certain visceral processes or referred pain rather than parietal irritation. So, a localized, intense pain from the lining of a cavity best describes parietal pain.