\(y=\frac{1}{x}\) 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.
A cut (also called a laceration) is a tear or opening in the skin caused by an external injury. It can be superficial, affecting only the surface of your skin or deep enough to involve tendons, muscles, ligaments, and bone. A puncture wound is a deep wound caused by something sharp and pointed, like a nail.