What is the primary function of prostaglandins in inflammation?

• A. To increase blood flow to the area
• B. To prevent clotting
• C. To induce pain and fever
• D. To enhance regeneration of tissues

Answer: (C)

Prostaglandins play a crucial role in the inflammatory response, and one of their primary functions is to induce pain and fever. When tissue is damaged or when there is an inflammatory response, prostaglandins are synthesized and released from various cell types, including macrophages and mast cells.

These lipid compounds sensitize nerve endings to pain stimuli, which contributes to the sensation of pain associated with inflammation. Additionally, prostaglandins can act on the hypothalamus to raise the body's temperature, leading to fever, which is a common systemic response to inflammation as the body attempts to fight off infection or injury.

While prostaglandins do also influence other processes in inflammation, such as vasodilation (increasing blood flow), their primary and most notable roles are the modulation of pain and the induction of fever, which help alert the body to a problem and promote healing by initiating protective mechanisms.