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.
Area Codes List. The following is a complete telephone area codes list of the United States. The map and locations information is available by clicking the specific area code link or click here to view the entire U.S. area code map. The area codes of 800, 888, 877, 866, 855, 844, 833 and 822 are toll free numbers.he following is a complete telephone area codes list of the United States. The map and locations information is available by clicking the specific area code link or click here to view the entire U.S. area code map.