\(y=\frac{1}{x}\) 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.
Causes of Wound Tunneling. 1  Tunneling of a wound may occur for various reasons: 2  infection- results in destruction of tissue. 3  too little/too much packing- using too much packing can degrade newly granulated tissue, while using too little packing may not absorb drainage adequately and may increase the risk of abscess formation.