THORAX ABDOMEN AND PELVIS

Detailed explanation-1: -The pericardiacophrenic arteries travel through the thoracic cavity. They course through the fibrous pericardium. The pericardiacophrenic artery accompanies the phrenic nerve between the pleura and pericardium, to the diaphragm.

Detailed explanation-2: -The pericardiophrenic artery, also known as the pericardiacophrenic artery, is a branch of the internal thoracic artery that runs to the diaphragm where it anastomoses with both the musculophrenic and superior phrenic arteries.

Detailed explanation-3: -The blood supply to the diaphragm is from the superior phrenic, musculophrenic, inferior phrenic, pericardiacophrenic, and lower internal intercostal arteries. The superior phrenic arteries arise from the thoracic aorta.