Aortic arches

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Aortic Arches

The Aortic Arches or Pharyngeal Arches are a series of six paired embryological vascular structures which give rise to several major arteries. They are among the most important systems in the development of the circulatory system.

Etymology[edit | edit source]

The term "Aortic" is derived from the Greek word "aorte" which means "the great artery". The term "arches" refers to the curved structure of these arteries.

Development[edit | edit source]

The aortic arches develop in a cranial to caudal sequence, starting from the fourth week of embryonic development. Each arch forms a specific part of the aorta and other large arteries. The first and second arches disappear early, but the others form parts of the carotid arteries, the subclavian arteries, and the pulmonary arteries.

Function[edit | edit source]

The aortic arches serve as a pathway for blood in the embryo from the heart to the rest of the body. They also play a crucial role in the development of the face, neck, and upper body, as they form the major arteries in these areas.

Clinical Significance[edit | edit source]

Abnormalities in the development of the aortic arches can lead to various congenital heart defects, such as coarctation of the aorta, patent ductus arteriosus, and double aortic arch.

See Also[edit | edit source]

References[edit | edit source]


Aortic arches Resources
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Contributors: Prab R. Tumpati, MD