He continued to explore Central America, hoping to find a strait from the Atlantic to the Pacific. He failed, instead discovering, and naming, California. In 1541, Cortes cortÃ©s returned To spain an embittered man and retired to an estate Near seville where he died on 2 december. 1547
Causes. The cause of the muscle spasm lies in the fact that the bulging disc is pressing against the ligament that holds it in place. Since this ligament contains nerves, the result is pain. Because of the initial pain, the back muscles go into spasm as part of the body's effort to immobilize the painful area.he cause of the muscle spasm lies in the fact that the bulging disc is pressing against the ligament that holds it in place. Since this ligament contains nerves, the result is pain.
Injury and Overuse. Muscle spasms can occur in any part of your body, including your arms, if your arm muscles are overused or injured. As your arm muscles become fatigued, you may experience a tight cramping sensation, or a muscle spasm.hoto Credit arm pumping image by MAXFX from Fotolia.com. Muscle spasms can occur for a number of reasons. The most common cause of muscle spasms is muscle fatigue, or overuse of a particular muscle, according to MedlinePlus. Sometimes a muscle spasm can feel like the muscle is hard, bulging, twitching or tight.