NERVE LIBRARY · Upper limb
Medial antebrachial cutaneous nerve
Medial antebrachial cutaneous nerve · MABC
Provides non-ulnar sensory information in lower-trunk or medial-cord assessment.
- Roots / nucleus
- C8–T1, predominantly T1
- Function
- Sensory
- 3D protocols
- 1 related protocols
01Course and sensory territory
Medial forearm; arises from the medial cord of the brachial plexus.
02Motor supply
No motor supply.
03Localization clues
Provides non-ulnar sensory information in lower-trunk or medial-cord assessment.
04Combine the studies
Combine with ulnar SNAPs, median APB and C8–T1 muscles from different peripheral nerves.
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
- Upper and Lower Extremity Nerve Conduction Studies (2023) ↗AANEM · Technical 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.