Blood from the body flows: 1  to the superior and inferior vena cava, 2  then to the right atrium. 3  through the tricuspid valve. 4  to the right ventricle. 5  through the pulmonic valve. 6  to the pulmonary artery. 7  to the lungs.
From the UPS docs: UPS Address Validation uses U.S. Postal Service guidelines to thoroughly check the city, state and postal code of every shipment. UPS provides up to ten alternate addresses, including an accuracy rate that lets your customers know how closely the address they entered matches the suggested address.
AVS is the address verification service portion of the card. Every issuer is different, but as a rule of thumb, if the 3-4 digit verification code matches, it's just looking at your billing zip code. If that doesn't match, it then tries to compare your billing address with the address on file with the bank.