A system of obstetrics . Diagrams to illustrate the Development of the Aortic Arches (from Landois): 1, the first threepairs of arches, the first pair only fully developed; 2, the five pairs of aortic arches; ta,bulbus arteriosus ; ad, dorsal aorta; 3, stage when the greater portion of the first and secondarches has become obliterated ; S, left subclavian artery; v, right vertebral artery; ax, rightaxillary artery; 4, transition to the final stage; P, pulmonary artery; A, aorta; S, rightsubclavian, continuous with the fourth arch on that side and with the origin of the com-mon carotid; Ci and
A system of obstetrics . Diagrams to illustrate the Development of the Aortic Arches (from Landois): 1, the first threepairs of arches, the first pair only fully developed; 2, the five pairs of aortic arches; ta,bulbus arteriosus ; ad, dorsal aorta; 3, stage when the greater portion of the first and secondarches has become obliterated ; S, left subclavian artery; v, right vertebral artery; ax, rightaxillary artery; 4, transition to the final stage; P, pulmonary artery; A, aorta; S, rightsubclavian, continuous with the fourth arch on that side and with the origin of the com-mon carotid; Ci and Ce, internal and external carotids; dB, ductus arteriosus; v and ax,respectively, the vertebral and axillary arteries of the left side. enlarge, and its proximal portion remains throughout life as the stumpof the pulmonary artery. Fig. 117.
Size: 2215px × 1128px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1880, booksubjectobstetrics, bookyear1
