This answer explains the relationships between the given terms in the context of biology.
Aortic Arch is closely related to the Ligamentum Arteriosum as the ligamentum arteriosum connects the aortic arch to the pulmonary trunk, assisting in fetal circulation.
The Superior Vena Cava is closely linked to the Right Atrium as it transports deoxygenated blood from the upper body to the right atrium of the heart.
The Vertebral Artery and Basilar Artery are closely related as the vertebral artery joins the basilar artery to form the posterior cerebral circulation.
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