NERVE LIBRARY · Upper limb
Lateral antebrachial cutaneous nerve
Lateral antebrachial cutaneous nerve · LABC
Adds sensory information when assessing musculocutaneous, lateral-cord or upper-trunk lesions.
- Roots / nucleus
- Predominantly C5–C6
- Function
- Sensory
- 3D protocols
- 1 related protocols
01Course and sensory territory
Lateral forearm; terminal sensory branch of the musculocutaneous nerve.
02Motor supply
No motor supply.
03Localization clues
Adds sensory information when assessing musculocutaneous, lateral-cord or upper-trunk lesions.
04Combine the studies
Compare both LABC responses alongside superficial radial sensory studies and C5–C6 muscles.
Explore the related 3D protocols
These retain the existing source-supported landmarks and references. The 3D model is educational; clinical work requires palpation and measured distances.
Connect to a clinical question
Progress stays in this browser. Marking a page as read is not a competency certification.
References and further reading
- Brachial Plexopathy: Differential Diagnosis and Treatment ↗AAPM&R KnowledgeNow · Society educational review · Link accessed 2026-09-08
- Neuroanatomy for Nerve Conduction Studies (2017) ↗AANEM · Anatomy course · Link accessed 2026-09-08
Educational synthesis; independent neuromuscular specialist review is pending. Publication dates and compilation dates are distinct. This is an original teaching synthesis; consult the source for complete methods and criteria.