title: Ulnar nerve anatomy.
abstract: The anatomy of the ulnar nerve is described from its origin at the brachial plexus to its termination in the hand and digits. The critical anatomy surrounding the cubital tunnel and Guyon canal is emphasized, and clinically relevant anatomic variations, muscle anomalies, and peripheral nerve anastomoses are described.
authors.affiliation: Department of Orthopaedic Surgery, Albert Einstein College of Medicine, Beth Israel Medical Center, Hand Surgery Center, 321 East 34th Street, New York, NY 10016, USA. dpolatsch@chpnet.org
authors.forename: Daniel B
authors.initials: DB
authors.lastname: Polatsch
authors.forename: Charles P
authors.initials: CP
authors.lastname: Melone
authors.forename: Steven
authors.initials: S
authors.lastname: Beldner
authors.forename: Angelo
authors.initials: A
authors.lastname: Incorvaia
mesh_terms: D006801:Humans; D014459:Ulnar Nerve / Q000033:anatomy & histology*; D034941:Upper Extremity / Q000294:innervation*