Medical Sciences Post Graduation Program, Fluminense Federal University, Niterói, Rio de Janeiro, Brazil.
Antonio-Pedro University Hospital, Niterói, Rio de Janeiro, Brazil.
Morphologie. 2024 Mar;108(360):100721. doi: 10.1016/j.morpho.2023.100721. Epub 2023 Oct 26.
To compare the collagen, elastic fibers, and smooth muscle content of the clitoris and the glans penis in young adults.
The clitoris and the glans penis of six women and six men (mean age 25±3) who died as a result of accidents were excised. The samples were placed under a formaldehyde solution and histologically processed. Masson's trichrome and Weigert's resorcin-fuchsin stain was used to highlight the elastic fibers, smooth muscle, and collagen. Stereological analysis was conducted in 5 random fields of 5 slides for each sample. For statistical analysis, the unpaired t-test was used to compare values between groups, and a value of P<0.05 was considered as significant for all analyses.
Stereology revealed a mean smooth muscle content of 35.84±6.46% and 31.64±4.74% for the clitoris and glans penis, respectively, while it also revealed collagen content of 26.11±7.41% and 28.44±3.55% and elastic fibers content of 24.12±4.34% and 30.97±6.13% for the clitoris and glans penis, respectively. The statistical analysis showed no significant differences between them.
Regardless of anatomical differences, the volumetric density of collagen, elastic fibers, and smooth muscle were similar for the clitoris and glans penis in young adults, a feature possibly explained by their embryology.
比较年轻成年人阴蒂和龟头的胶原、弹性纤维和平滑肌含量。
切除六位女性和六位男性（平均年龄 25±3 岁）意外死亡者的阴蒂和龟头。将样本置于福尔马林溶液中并进行组织学处理。使用 Masson 三色和 Weigert 间苯二酚复红染色来突出弹性纤维、平滑肌和胶原。对每个样本的 5 张幻灯片的 5 个随机视野进行体视学分析。为了进行统计分析，使用未配对 t 检验比较组间值，所有分析均认为 P<0.05 有统计学意义。
体视学显示，阴蒂和龟头的平滑肌含量分别为 35.84±6.46%和 31.64±4.74%，胶原含量分别为 26.11±7.41%和 28.44±3.55%，弹性纤维含量分别为 24.12±4.34%和 30.97±6.13%。统计学分析显示它们之间无显著差异。
无论解剖学差异如何，年轻成年人的阴蒂和龟头的胶原、弹性纤维和平滑肌的体积密度相似，这一特征可能与其胚胎发生有关。
