pericardiacophrenic artery [pĕr′ĭ-kär-dī′ə-kō-frĕn′ĭk] n.
- An artery with its origin in the internal thoracic artery, with distribution to the pericardium, diaphragm, and pleura; and with anastomoses to phrenic arteries and branches of the internal thoracic artery.