Fig. 4. Superior and inferior epigastric arteries in sagittal sections of a fetus with a crown-rump length of 61 mm. H&E staining. The arrow in each panel indicates the most superior intersection of the rectus abdominis. (C) Magnified view of the rectangle in (B). (D) Magnified view of the rectangle in (A). (E) Magnified view of the rectangle in (D). The superior epigastric artery (sup.epig.a) approaches the intersection in (D), and the inferior epigastric artery (inf.epig.a) approaches the intersection in (C). Thus, the umbilicus is in the region of the inferior artery. (E) Shows the inferior epigastric artery and the accompanying veins and lymphatic vessels. (A, B) Low magnification (scale bar in A=1 mm). (C, D) High magnification (scale bar in D=1 mm). (E) Highest magnification (scale bar=0.1 mm).
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