The lungs and kidneys are the major organs involved in regulating blood pH. 1  The lungs flush acid out of the body by exhaling CO 2. 2  The kidneys excrete acids in the urine, and they regulate the concentration of bicarbonate (HCO 3 - , a base) in blood.
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By Mail: There are different payment addresses depending on which card you have. If you have the TJX MasterCard, send payment to TJX MasterCard, P.O. Box 530949, Atlanta, GA 30353. If you have the TJX store credit card, send payment to TJX Card, P.O. Box 530948, Atlanta, GA 30353. By Phone: You can make payment and get customer service help by calling one of the following phone numbers. For the TJX MasterCard, call 1-877-890-3150.