Skip to main content
. 2015 Jan 24;10(1):e0115853. doi: 10.1371/journal.pone.0115853

Figure 5. Human embryonic heart (56 days), CD 34, desmin and α-SMA immune labeling.

Figure 5

Immune labeling for CD34 (A, detail in B), desmin (C) and α-SMA (D) of the future posterior interventricular groove in a 56 days human embryonic heart, oblique-sagittal cut. Endothelial sprouts guided by tip cells (arrow, A and B) invade the outer myocardium. The subepicardial vessels are embedded in a myoid stroma, α-SMA- and desmin-positive (arrowhead in C and D). Myoid cells (arrows in C and D) contact the endothelial sprouts within the outer myocardium.