Arachidonic acid is a type of fatty acid that is found in the cell membranes of the body. It is classified as an omega-6 fatty acid and plays a crucial role in various physiological processes, including inflammation and cell signaling. The body can produce arachidonic acid from another fatty acid called linoleic acid, which is obtained from dietary sources like vegetable oils and nuts. Once released from cell membranes, arachidonic acid can be converted into several important signaling molecules, known as eicosanoids. These eicosanoids include prostaglandins, thromboxanes, and leukotrienes, which are involved in regulating inflammation, blood clotting, and immune responses. Thus, arachidonic acid is essential for maintaining overall health and responding to injury or infection.