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Related Concept Videos

Abdominal Aorta01:25

Abdominal Aorta

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Once the aorta traverses the diaphragmatic plane at the aortic hiatus, it is known as the abdominal aorta. This anatomical structure is positioned leftward of the spinal column, encased within a cocoon of adipose tissue behind the peritoneal cavity. It terminates at the L4 vertebra, where it splits into the common iliac arteries. Prior to this bifurcation, the abdominal aorta gives rise to several vital branches.
The celiac trunk, a singular artery, divides into the left gastric artery, which...
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Thoracic Aorta01:15

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The thoracic section of the aorta begins at the T5 vertebra and extends to the T12 level at the diaphragm, initially progressing through the mediastinum to the left of the spinal column. Throughout its course in the thoracic segment, the thoracic aorta emits various offshoots known collectively as visceral and parietal branches. The branches that predominantly supply blood to visceral organs are termed visceral branches and include bronchial, pericardial, esophageal, and mediastinal arteries,...
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The Arch of Aorta01:10

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The coronary arteries, originating from the ascending aorta, bifurcate from two sinuses located within the ascending aorta. Positioned just above the aortic semilunar valve, these sinuses house essential aortic baroreceptors and chemoreceptors, crucial for maintaining cardiac function. The left coronary artery and the right coronary artery branch off from the left posterior and anterior aortic sinuses, respectively.
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The Aorta01:14

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The aorta is the largest artery in the human body. It originates from the left ventricle of the heart and extends down to the abdomen, where it splits into two smaller arteries. Structurally, it can be divided into four main parts: the ascending aorta, the aortic arch, the thoracic aorta, and the abdominal aorta.
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Aortic Regurgitation I: Introduction01:15

Aortic Regurgitation I: Introduction

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IntroductionAortic regurgitation is characterized by the backward flow of blood from the aorta into the left ventricle during diastole and arises from the improper closure of the aortic valve. This condition results in left ventricular volume overload and can stem from both acute and chronic etiologies, each contributing uniquely to the disease's progression and symptomatology.Acute and Chronic CausesAcute aortic regurgitation often results from events that suddenly impair the integrity of the...
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Aneurysm I: Introduction01:30

Aneurysm I: Introduction

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An aortic aneurysm is a localized outpouching or dilation at a weak point in the artery wall. It may involve different parts of the aorta, such as the abdominal aorta, aortic arch, or thoracic aorta.Etiological factorsSeveral disorders are associated with aortic aneurysms.Congenital causes, such as primary connective tissue disorders like Marfan syndrome, impact the integrity and strength of connective tissues, notably affecting the aorta. Marfan syndrome is a genetic disorder that specifically...
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Related Experiment Video

Updated: Dec 21, 2025

Author Spotlight: Using Point-of-Care Ultrasound for Comprehensive Evaluation of the Abdominal Aorta
07:12

Author Spotlight: Using Point-of-Care Ultrasound for Comprehensive Evaluation of the Abdominal Aorta

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A Very Low-Positioned Aortic Bifurcation.

Jad A Degheili1, Haya Malhas2, Tag Keun Yoo3

  • 1Division of Urology, Department of Surgery, American University of Beirut-Medical Center, Beirut, Lebanon.

Vascular Specialist International
|May 17, 2020
PubMed
Summary

Rare aortoiliac artery anomalies, including a very low aortic bifurcation and a corkscrew left common iliac artery, were incidentally discovered. These unique vascular variations, along with an ectopic kidney, present a novel case in medical literature.

Keywords:
AnatomyAortic bifurcationComputed tomographyLumbosacral spineSacrum

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Area of Science:

  • Vascular Anatomy
  • Radiology
  • Urology

Background:

  • Aortoiliac artery anomalies are infrequently documented, often found incidentally during imaging for unrelated conditions.
  • Typical aortic bifurcation occurs at the fourth lumbar vertebra, but anatomical variations exist.

Observation:

  • A rare case presented with an unusually low aortic bifurcation near the S2 vertebral level.
  • Associated anomalies included a corkscrew-shaped left common iliac artery anterior to the bladder and an ectopic right kidney.

Findings:

  • The corkscrew left common iliac artery exhibited pulsation visible during cystoscopy.
  • This combination of low aortic bifurcation, specific iliac artery anomaly, and ectopic kidney is previously unreported.

Implications:

  • Highlights the importance of recognizing rare vascular variations in diagnostic imaging.
  • Contributes to a comprehensive understanding of human anatomical diversity.
  • May influence surgical planning and interpretation of urological procedures.