A mule is the result of a horse that has been bred with a donkey. Mules are generally sterile, meaning that they cannot be bred with each other in most cases. They also have 63 chromosomes. In appearance, mules may look very similar to donkeys. They also have stiff hair. Much like donkeys, mules are strong animals and tend to have calmer personalities.
To research the causes of Air embolism, consider researching the causes of these these diseases that may be similar, or associated with Air embolism: 1  Dyspnea. 2  Pulmaonary barotrauma. 3  Decompression syndrome. 4  Stroke. Thrombosis.
Pulmonary embolism (PULL-mun-ary EM-bo-lizm), or PE, is a sudden blockage in a lung artery. The blockage usually is caused by a blood clot that travels to the lung from a vein in the leg. A clot that forms in one part of the body and travels in the bloodstream to another part of the body is called an embolus (EM-bo-lus).