\(y=\frac{1}{x}\) 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.
Here are some causes: 1  Trauma or injury such as pinching or slammed by an object. 2  Damage to blood vessels. 3  Immobilization such as to people who had operation, paralysed, or in bed rest. Because blood becomes stagnant, they begin to form clots.  A rupture of a cholesterol plaque in the blood vessels.