Inferior phrenic arteries

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Artery: Inferior phrenic arteries
The abdominal aorta and its branches. (Inferior phrenic arteries labeled at upper right.)
Posterior abdominal wall, after removal of the peritoneum, showing kidneys, suprarenal capsules, and great vessels.
Latin	arteria phrenica inferior
Gray's	subject #154 612
Supplies	thoracic diaphragm
Source	abdominal aorta
Branches	superior suprarenal artery
Vein	inferior phrenic vein
Dorlands / Elsevier	a_61/12155488

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The inferior phrenic arteries are two small vessels, which supply the diaphragm but present much variety in their origin.

They may arise separately from the front of the aorta, immediately above the celiac artery, or by a common trunk, which may spring either from the aorta or from the celiac artery. Sometimes one is derived from the aorta, and the other from one of the renal arteries; they rarely arise as separate vessels from the aorta.

They diverge from one another across the crura of the diaphragm, and then run obliquely upward and lateralward upon its under surface.

• The left phrenic passes behind the esophagus, and runs forward on the left side of the esophageal hiatus.

• The right phrenic passes behind the inferior vena cava, and along the right side of the foramen which transmits that vein.

Near the back part of the central tendon each vessel divides into a medial and a lateral branch.

• The medial branch curves forward, and anastomoses with its fellow of the opposite side, and with the musculophrenic and pericardiacophrenic arteries.

• The lateral branch passes toward the side of the thorax, and anastomoses with the lower intercostal arteries, and with the musculophrenic. The lateral branch of the right phrenic gives off a few vessels to the inferior vena cava; and the left one, some branches to the esophagus.

Each vessel gives off superior suprarenal branches to the suprarenal gland of its own side. The spleen and the liver also receive a few twigs from the left and right vessels respectively.

External links

• SUNY Labs 40:11-0200 - "Posterior Abdominal Wall: Branches of the Abdominal Aorta"
• Cross section at UV pembody/body8a (#23)

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.

v • d • e Arteries of torso - abdomen
AA: Anterior	celiac left gastric splenic: pancreatic branches (arteria pancreatica magna) – short gastric – left gastro-omental common hepatic: proper hepatic (cystic), right gastric, gastroduodenal (right gastro-omental, superior pancreaticoduodenal) SMA inferior pancreaticoduodenal – intestinal – ileocolic (appendicular) – right colic – middle colic IMA left colic – sigmoid – superior rectal – marginal
AA: Posterior	visceral: middle suprarenal – renal (inferior suprarenal) – testicular/ovarian parietal: inferior phrenic (superior suprarenal) – lumbar – median sacral terminal: common iliac (IIA, EIA)
IIA: Anterior	umbilical (superior vesical, to ductus deferens) – inferior vesical – middle rectal – uterine (azygos of the vagina) – vaginal – obturator (anterior branch, posterior branch) – internal pudendal (inferior rectal, perineal, artery of the urethral bulb, urethral, deep artery of the penis, dorsal artery of the penis) – inferior gluteal (accompanying of ischiadic nerve, crucial anastomosis)
IIA: Posterior	iliolumbar – lateral sacral – superior gluteal
EIA	inferior epigastric (cremasteric) – deep circumflex iliac

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Acknowledgement and Attribution Regarding Sources of Content

Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .