Anterior division of inferior trunk of brachial plexus
Divisio anterior trunci inferioris plexus brachialis
- Related terms: Anterior division
Definition
The inferior trunk of the brachial plexus divides into two main divisions: an anterior division and a posterior division. The anterior division of inferior trunk of brachial plexus continues alone in the axilla, forming the medial cord of the brachial plexus.
Importantly, no nerve branches arise directly from the divisions of the brachial plexus.
References
Polcaro L, Charlick M, Daly DT. Anatomy, Head and Neck: Brachial Plexus. [Updated 2023 Aug 14]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2025 Jan-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK531473/
Drake, R.L., Vogl, A.W., and Mitchell, A.W.M. (2010). ‘Chapter 2: The Back’, in Gray’s anatomy for students. (2nd ed.) Churchill Livingstone Elsevier, Philadelphia PA 19103, pp.95-99 & Fig. 2.44 & 2.45.
Johnson EO, Vekris M, Demesticha T, Soucacos PN. Neuroanatomy of the brachial plexus: normal and variant anatomy of its formation. Surg Radiol Anat. 2010 Mar;32(3):291-7.
