fig2

Figure 2. Histological sections. EVG, anti-smooth muscle, and anti-striated muscle staining: (A) horizontal sections; and (B) Sagittal sections. BSM: bulbospongiosus muscle; CM: circular muscle layer; EAS: external anal sphincter; LM: longitudinal muscle layer; PRM: puborectalis muscle; RUM: rectourethral muscle; Ur: urethra; EVG: elastica van gieson; MRI: magnetic resonance imaging