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. A pulmonary embolism is the sudden blocking of one of the arteries of the lung by matter in the blood, such as a blood clot, fat, fragments of a cancerous tumor or an air bubble. The blockage prevents enough oxygen-rich blood from reaching the tissues of the lung, causing lung tissue to die (pulmonary infarction).