\(y=\frac{1}{x}\) 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.
The five types of wounds are abrasion, avulsion, incision, laceration, and puncture. An abrasion is a wound caused by friction when a body scrapes across a rough surface. An avulsion is characterized by a flap. An incision is a cut with clean edges. A laceration is a cut with jagged edges.