Diagram of the vascular channels in a human embryo of the second week. (After Eternod.) The red...
Diagram of the vascular channels in a human embryo of the second week. (After Eternod.) The red...
F IG. 458– Diagram of the vascular channels in a human embryo of the second week. (After Eternod...
F IG. 458– Diagram of the vascular channels in a human embryo of the second week. (After Eternod...
Profile view of a human embryo estimated at twenty or twenty-one days old.
Profile view of a human embryo estimated at twenty or twenty-one days old.
... The median endocardial tubes remain on either side of the neural fold to form the dorsal aortae.
... The median endocardial tubes remain on either side of the neural fold to form the dorsal aortae.
Fig.9. Fusion of dorsal aortae. Ventral view. Fusion progresses cran-ially. (Redrawn from Hamilton...
Fig.9. Fusion of dorsal aortae. Ventral view. Fusion progresses cran-ially. (Redrawn from Hamilton,...
5 6 7 8 Dorsal aorta Lung buds Aortic sac Pulmonary plexus Fig. 3 From the aortic sac a vessel...
5 6 7 8 Dorsal aorta Lung buds Aortic sac Pulmonary plexus Fig. 3 From the aortic sac a vessel...
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