Correlation between collagen, smooth muscle fibers and elastic system fibers, in percentage, with fetal age, during the fetal period studied (13 to 36 weeks post-conception – WPC).

<p>The points plotted represent the mean values obtained for each week studied. <b>A</b>) Analysis in the corpus cavernosum. Linear regression indicated that the growth is correlated significantly and positively, with fetal age (collagen: r<sup>2</sup> = 0.9771, p<0.0001; smooth muscle: r<sup>2</sup> = 0.9516, p<0.0001; elastic fibers: r<sup>2</sup> = 0.9122, p<0.0001). <b>B</b>) Analysis in the corpus spongiosum. Linear regression indicated that the growth is correlated significantly and positively, with fetal age (collagen: r<sup>2</sup> = 0.9464, p<0.0001; smooth muscle: r<sup>2</sup> = 0.9153, p<0.0001; elastic fibers: r<sup>2</sup> = 0.8299, p<0.0001).</p>