\(y=\frac{1}{x}\) This means that the line y=0 is a horizontal asymptote. Horizontal asymptotes occur most often when the function is a fraction where the top remains positive, but the bottom goes to infinity. Going back to the previous example, \(y=\frac{1}{x}\) is a fraction.
Causes of Wounds. Wound causes can be internal or external in origin. Wounds of internal origin are mainly due to impaired circulation, neuropathy or medical illness. Wounds of external origin are due to an outside force or trauma that causes open or closed wounds.
Wounds are any injuries to the skin, such as cuts, punctures, sores, ulcers and burns. They are often painful and may exist as the result of an accident or fall. Surgical wounds follow a medical procedure. Wounds can range in severity from mild to serious, and proper care is required to avoid infection.