CARDIOLOGY
AORTIC STENOSIS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The connection between third and fourth aortic arches is known as ____
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ductus caroticus
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ductus arteriosus
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ductus botalli
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pulmonary
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Explanation:
Detailed explanation-1: -Arch 4. Also known as the systemic arch. The fourth right arch forms the most proximal segment of the right subclavian artery, as far as the origin of its internal thoracic branch. The fourth left arch forms a part of the arch of the aorta, between the origin of the left common carotid and the left subclavian arteries.
Detailed explanation-2: -The aortic arch is the connection between the ascending and descending aorta, and its central part is formed by the left 4th aortic arch during early development. The ductus arteriosus connects to the lower part of the arch in foetal life.
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