Inferior phrenic arteries

The inferior phrenic arteries are small vessels that may have various origins. These two arteries may originate at the aorta, although both will not generally begin here, the celiac artery, or from a trunk that sprouts from the celiac artery or aorta. One of the inferior phrenic arteries may arise from the renal arteries. The purpose of the two arteries is to deliver blood to the diaphragm. The left artery will pass behind the esophagus, while the right artery will pass behind the inferior vena cava. The inferior phrenic arteries divide into two branches, the medial and the lateral. They also branch into the superior suprarenal braches and the suprarenal gland. Small branches from these arteries may reach the spleen and liver. The inferior phrenic arteries diverge across the crura of the diaphragm. They run upward and laterally on the underside of the crura. In the back of the central tendon, these branches go into the medial and lateral branches previously mentioned.
Written and medically reviewed by the Healthline Editorial Team
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In Depth: Inferior phrenic arteries

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