Condition Description. Truncus arteriosus is an uncommon congenital heart defect where a baby is born with a single blood vessel (called a truncus) coming from the main pumping chambers of the heart (the ventricles) instead of two vessels (one from each ventricle).ondition Description. Truncus arteriosus is an uncommon congenital heart defect where a baby is born with a single blood vessel (called a truncus) coming from the main pumping chambers of the heart (the ventricles) instead of two vessels (one from each ventricle).
IRS Office Customer Service Phone Number Phone Number: 1 (800) 829-1040. Shortcut: N/A - Edit
Source: Wikimedia Commons. The IRS continues to warn about telephone scams, which are increasing in number. The IRS Phone Number for taxpayer help is (800)829-1040. If you get a call from someone claiming to be the IRS, and you didn't receive an official letter beforehand, it's a scam. Further, if you get an email from the IRS, it's a scam.