Figure 3
From: Mesothelial Cells Covering the Surface of Primo Vascular System Tissue

Scanning electron microscopy of mesothelial cells on the surface of primo vascular system (PVS) tissue. (A and B) Squamous mesothelial cells covering the body (A) and wrapping the small branches of the PVS tissue (B). (C) Magnified view of the cells in (A) showing the microvilli and round nuclei (3.3 × 4.7 µm). (D) Mesothelial cells wrapping the PVS branches at a higher magnification. Note the protrusions along the cell borders, numerous stomata (arrow heads) through the extracellular matrix, and the particles near or over the stomata (arrows).