Fig. 7
From: The growth pattern of the human intestine and its mesentery
Branches of the superior mesenteric artery are stable landmarks for the midgut. Right-sided view of the reconstructed midgut and arterial tree of the SMA of a CS23 embryo (s48, panel a) and the corresponding schematic representation of the arterial tree (panel b). The most proximal 8 branches originated intra-abdominally and supplied the 1st and 2nd secondary loops. The third branch is typically bifurcated and perfused the intestine in the neck of the umbilical hernia. Distances between the 5 branches that originated extra-abdominally were longer. These branches supplied the 3rd secondary loop. Distally, the SMA formed a vascular “broom” that supplied the 4th secondary loop and cecum. Scale bar unit: μm. Interactive 3D-PDFs are available online (3D-PDF CS23, 9.0, and 9.5 WKS)