Illustrated Encyclopedia of Human Anatomic Variation: Opus II: Cardiovascular System

Right-Sided Aortic Arch; Aortic Ring.

Ronald A. Bergman, PhD
Adel K. Afifi, MD, MS
Ryosuke Miyauchi, MD
Peer Review Status: Internally Peer Reviewed

Fig. 1Anterior view of the heart and great vessels. The pericardium has been cut away and the right ventricle opened by reflecting a portion of its wall. The right atrio-ventricular ostium is visible. Above this is seen the ventricular septal defect (the asterisk is within the aperture; the arrows are pointing to the edge), through which are visible the posterior (larger of the two) and the left aortic valves. The right and posterior pulmonary cusps are visible at the base of the pulmonary artery. The inferior laryngeal nerves are turning around their respective arches. The vein of the left atrium is seen arching over the left pulmonary artery and thence into a free pericardial fold (3/4 natural size).

Fig. 2 Drawings (1-1/3 natural size) of the great vessels from the left side and above. The trachea (T.) and esophagus (E.) have been transected close to the vascular arches. The branches of the right-sided aorta are: the left common carotid (C.S.), the right common carotid (C.D.), and the right subclavian (S.D.) arteries. The left subclavian artery (S.S.) arises from the mid-portion of the ductus arteriosus; the left pulmonary artery (P.S.) from its base. The inferior laryngeal nerves are indicated by an asterisk; the X labels the left vagus nerve.

from Siekert.

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