Commotio cordis. Commotio cordis (Latin, agitation of the heart) is an often lethal disruption of heart rhythm that occurs as a result of a blow to the area directly over the heart (the precordial region), at a critical time during the cycle of a heart beat causing cardiac arrest.
A ZIP Code is a five digit number that identifies a specific geographic mail delivery area. The acronym ZIP refers to Zone Improvement Plan, a plan implemented by the USPS in the early 1960âs to improve the sorting and delivery of mail. There are approximately 43,000 ZIP Codes in the United States.
In the United States, an area code is a three digit number that comes before the seven digits that make up the local number, three for the prefix and four for the suffix. While the prefix of the local number gives an idea of the more specific area, such as town or neighborhood, the area code denotes the larger region, either a whole segment of a city, or even an entire county of part of a state.