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Related Concept Videos

The Arch of Aorta01:10

The Arch of Aorta

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.
Encircling the heart, the coronary arteries form a ring-like structure before...
Thoracic Aorta01:15

Thoracic Aorta

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,...
Abdominal Aorta01:25

Abdominal Aorta

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.
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Overview of Systemic Arteries01:11

Overview of Systemic Arteries

The human body is a complex, well-organized machine, and at the heart of its operations lies the circulatory system. This network of blood vessels, which includes systemic arteries, plays a vital role in maintaining life by transporting nutrients, oxygen, and waste products to and from cells throughout the body.
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The Aorta01:14

The Aorta

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.
The average diameter of the aorta is approximately 2-3 cm, but the size can vary depending on the section of the aorta and the individual's age, sex, and body size. The aorta is...
Arteries of the Upper Limbs01:12

Arteries of the Upper Limbs

The subclavian artery transitions into the axillary artery as it exits the chest and enters the axillary region. This artery is critical for supplying blood to the shoulder area, including the head of the humerus, through the humeral circumflex arteries. As the vessel continues into the upper arm or brachium, it becomes the brachial artery. This artery plays a key role in vascularizing the brachial region and bifurcates at the elbow into several branches. These branches include the deep...

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Related Experiment Video

Updated: Jun 7, 2026

Direct Re-implantation of Left Coronary Artery into the Aorta in Adults with Anomalous Origin of Left Coronary Artery from the Pulmonary Artery (ALCAPA)
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Direct Re-implantation of Left Coronary Artery into the Aorta in Adults with Anomalous Origin of Left Coronary Artery from the Pulmonary Artery (ALCAPA)

Published on: April 24, 2017

A simplified categorization for common arterial trunk.

Hyde M Russell1, Marshall L Jacobs, Robert H Anderson

  • 1Division of Cardiovascular-Thoracic Surgery, Children's Memorial Hospital, Chicago, Ill 60614, USA. hrussell@childrensmemorial.org

The Journal of Thoracic and Cardiovascular Surgery
|October 23, 2010
PubMed
Summary
This summary is machine-generated.

This study simplifies the classification of common arterial trunks by categorizing them based on aortic or pulmonary dominance. This approach reconciles existing methods and highlights key determinants for surgical outcomes in patients with common arterial trunks.

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Area of Science:

  • Cardiology
  • Pediatric Cardiology
  • Congenital Heart Disease

Background:

  • A common arterial trunk (CAT) is a complex congenital heart defect where a single great artery arises from the ventricles.
  • Current classifications of CAT are based on pulmonary artery morphology or systemic pathway characteristics.
  • Reconciling these classification systems is crucial for understanding and managing CAT.

Purpose of the Study:

  • To evaluate and reconcile existing classification methods for common arterial trunks.
  • To establish a simplified classification system for CAT based on morphologic determinants.

Main Methods:

  • Analysis of 28 autopsied hearts with common arterial trunks from multiple institutions.
  • Development of a classification system based on aortic or pulmonary dominance.
  • Application of the classification to 42 surgically treated patients.

Main Results:

  • All hearts were successfully classified into either aortic or pulmonary dominance groups (20 aortic, 8 pulmonary).
  • Pulmonary dominance was associated with a hypoplastic aorta and reliance on the arterial duct for descending aortic flow.
  • Specific morphologic features, including pulmonary artery origin and aortic component discreteness, were noted in pulmonary dominance.

Conclusions:

  • A simplified classification of common arterial trunks based on aortic or pulmonary dominance reconciles existing systems.
  • This approach emphasizes the primary morphologic determinant influencing surgical outcomes in patients with common arterial trunks.