Fathi Ali Tagreed, Musa Fadlelmula Khalid, Variant Trifurcation of the Ulnar Nerve in Guyon’s Canal of the Human Wrist: Case report, International Journal of Human Anatomy, Volume 2, Issue 4, 2021, Pages 33-37, ISSN 2577-2279, https://doi.org/10.14302/issn.2577-2279.ijha-21-4005. (http://oap-journals.infoijha/article/1738) Keywords: Ulnar nerve; Ulnar tunnel; Trifurcation; Pisiform bone.