2 Nov 2021
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It also gives rise to the left/right pulmonary arteries which travels along the plane of louis. There"s also the pulmonary trunk in the superior mediastinum: note: there"s also the ligamentum arteriosum bridging from the top of pulmonary trunk to. In some people, this fusion doesn"t happen properly surgically ligated and closed off. It"s essentially a thick muscle with fused lumen feels like a ligament: after first breath, smooth muscle of ductus arteriosus contracts and causes its lumen to fuse. bottom of aortic arch leftover of ductus arteriosus. Anterior mediastinum is rather thin (it"s just a space between the body of sternum and the heart) Internal thoracic vessels: figure: lhs; posterior view of sternum. Middle mediastinum is just deep to the anterior mediastinum it contains: heart + roots of great vessels (svc; ascending aorta; pulmonary trunk), nerves (phrenic nerve and vagus nerve).
