Photomicrographs of elastic system fibers in the corpus cavernosum and corpus spongiosum (brown tint) of fetal penis at different ages in weeks post-conception (WPC). Carla B. M. Gallo Waldemar S. Costa Angelica Furriel Ana L. Bastos Francisco J. B. Sampaio 10.1371/journal.pone.0106409.g003 https://plos.figshare.com/articles/figure/_Photomicrographs_of_elastic_system_fibers_in_the_corpus_cavernosum_and_corpus_spongiosum_brown_tint_of_fetal_penis_at_different_ages_in_weeks_post_conception_WPC_/1155740 <p>A) Corpus cavernosum, fetus of 13 WPC; B) Corpus spongiosum, fetus of 13 WPC; C) Corpus cavernosum, fetus of 20 WPC; D) Corpus spongiosum, fetus of 20 WPC; E) Corpus cavernosum, fetus of 30 WPC; F) Corpus spongiosum, fetus of 30 WPC. Immunostaining for elastin, X1000.</p> 2014-08-29 02:57:05 nih Image J software corpus cavernosum system fibers Muscle fibers collagen Erectile Tissue Components usa WPC Fetal Period BackgroundThe penile erectile tissue corpus spongiosum