What is superior phrenic arteries?

The superior phrenic arteries are small branches of the thoracic aorta that provide blood supply to the diaphragm muscle. These arteries arise from the lower part of the thoracic aorta, just above the celiac trunk, and run along the surface of the diaphragm.

The right superior phrenic artery usually arises from the anterior aspect of the aorta, whereas the left superior phrenic artery may arise from the aorta or the left inferior phrenic artery.

The blood supply provided by the superior phrenic arteries is essential for maintaining the function of the diaphragm, which is the primary muscle responsible for breathing. In some cases, injury or obstruction of the superior phrenic arteries can lead to diaphragmatic ischemia, which can impair breathing and require immediate medical attention.

Overall, the superior phrenic arteries play a crucial role in the cardiovascular system by ensuring proper blood flow to the diaphragm and maintaining respiratory function.