Nervous system conditions that can cause muscle twitching include: 1  Amyotrophic lateral sclerosis (ALS-Lou Gehrig's disease). 2  Neuropathy or damage to the nerve that leads to a muscle. 3  Spinal muscular atrophy. 4  Weak muscles (myopathy).
Confidence votes 1.6K. Philadelphia is a city located in the state of Pennsylvania. On the north eastern side of the United States of America.In Pennslyvania.oston is in Massachusetts, Philadelphia is in Pennsylvania, and New York City is in New York State.
With equally large swaths of cities and towns as fields and mountains, Pennsylvania is a rich and varied state, as well as a worthy travel destination. Pennsylvania is bordered by the states of New Jersey, New York, Delaware, Maryland, West Virginia, and Ohio. The main cities are the aforementioned Philadelphia and Pittsburgh, along with other smaller cities such as Allentown, Erie, Reading, Bethlehem, and Scranton. Harrisburg â the state capital.