On the Sensory Innervation of the Labium Minus Pudendi and the Vestibulum Vaginae in Formosan Macaque

The labium minus pudendi of the Formosan macaque is richly snpplied with sensory nerve elements. A part of the sensory fibres end in the hair follicles of the outer plate of the labium in considerably well-developed fence-like terminations, but the largest majority end in branched and corpuscular terminations in the papillae and the propria mucosae of the inner plate. The branched terminations chiefly consist in rather complex ones comprising about half a dozen branch fibres. The corpuscular terminations far exceed the branched terminations in number and comprise the types of Type I of glomerular appearance, Type II of neurofibrillar lamellae, Txpe III of large ones of plexiform appearance and small-sized PACINIan bodies. The vaginal vestibule is far worse supplied sensorily than the minor lip. In this part, the above Type II end-bodies are overwhelmingly predominant, followed by Type I corpuscles, unbranched and simple branched terminations being extremely rare. No intraepithelial fibre could ever be found in either of these parts of the female genitals of Formosan macaque.