aortic arch
The 'aortic arch' is a crucial structure in the cardiovascular system, playing a key role in blood circulation and development.
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Definition
C1Anatomy
(technical, medical)The curved part of the main artery that connects the ascending and descending sections, supplying blood to the head, neck, and upper limbs.
Example
- The aortic arch is essential for directing blood flow to the upper body.
C2Embryology
(technical, medical)One of a series of paired vascular structures in embryos that connect the heart's arterial system to the dorsal arteries, later forming the major arteries of the neck and head.
Example
- During development, the aortic arch forms from the left fourth pharyngeal arch artery.