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Understanding the Aortic Arch: Exploring Its Anatomy and Types

Aortic Arch

Introduction:

The aortic arch, a crucial component of the human circulatory system, plays a significant role in distributing oxygenated blood to various parts of the body. Situated in the upper portion of the chest, just beyond the heart, the aortic arch represents a vital connection between the heart's left ventricle and the rest of the circulatory system. In this article, we will delve into the anatomy of the aortic arch and explore its different types, shedding light on this remarkable structure of the human body.

Anatomy of the Aortic Arch:

The aortic arch is a curved segment of the aorta, the largest artery in the body. It starts at the level of the upper border of the second sternocostal articulation (a joint between the sternum and the ribs) and extends upwards and backwards before descending behind the heart. The aortic arch consists of several distinct parts, including three main branches that supply blood to various regions of the body.

Types of Aortic Arch:

Aortic arch can be divided into three types according to the ratio between diameter of common carotid artery (CCA) to the distance between the horizontal line through the top of arch and the horizontal line through the orifice of innominate artery:

a type I, less than 1;

b type II, between 1 to 2

c type III, more than 2 

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