The "ala of the nose" refers to the outer, rounded edges of the nostrils. These structures are made of cartilage and skin, helping to shape the nose and allowing for the passage of air during breathing. The ala plays a crucial role in the overall appearance of the nose and contributes to facial aesthetics. In addition to their functional role in respiration, the alae can vary in size and shape among individuals, influenced by genetics and ethnicity. They are also important in cosmetic surgery, where procedures may aim to enhance or alter the shape of the nose for improved facial harmony.