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The nerve of Henlé.

S J McCabe1, J M Kleinert

  • 1Christine M. Kleinert Institute for Hand and Micro Surgery, Louisville, Ky.

The Journal of Hand Surgery
|September 1, 1990
PubMed
Summary

The nerve of Henlé, an ulnar nerve branch, provides sympathetic innervation to the ulnar artery. Dissection revealed typical and atypical patterns, with variations in origin and branching for forearm skin innervation.

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Area of Science:

  • Anatomy
  • Neuroscience
  • Vascular Biology

Background:

  • The nerve of Henlé is a forearm nerve branch originating from the ulnar nerve.
  • Its role in sympathetic innervation of the ulnar artery is hypothesized.
  • Understanding its anatomical course and variations is crucial for clinical applications.

Purpose of the Study:

  • To investigate the anatomical course and variations of the nerve of Henlé.
  • To determine its relationship with the ulnar artery and superficial fascia.
  • To explore its potential role in cutaneous innervation of the distal forearm.

Main Methods:

  • Dissection of 40 human cadaver forearms under magnification.
  • Detailed observation and documentation of the nerve of Henlé's origin, course, and branching patterns.
  • Comparison between typical and atypical anatomical presentations.

Main Results:

  • Two distinct patterns of the nerve of Henlé were identified in 40 dissections.
  • The typical pattern (45%) originated 16 cm proximal to the ulnar styloid, branching to innervate distal forearm skin.
  • An atypical pattern (12%) showed a more distal origin and course. The palmar cutaneous branch of the ulnar nerve was often absent when the nerve of Henlé was present.

Conclusions:

  • The nerve of Henlé exhibits significant anatomical variability in its origin and branching.
  • It contributes to sympathetic innervation of the ulnar artery and cutaneous innervation of the distal forearm.
  • The nerve of Henlé may represent a variant of the palmar cutaneous branch of the ulnar nerve.

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