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.
-Neurological-nerve irritation-mainly Herniated disk and or. -Muscle spams. (the two possible causes are commonly associated and coexist). Even so, in most of the cases with upper back or one sided neck pain, strain of the back muscles and ligaments, is the primary cause. Muscle spasm alone can cause this pain which can be an unidentified cause but.