We need you! See something you could improve? Make an edit and help improve WikSM for everyone.

Musculocutaneous Nerve

From WikiSM
Jump to: navigation, search


  • General[1]
    • Is the terminal branch of the lateral cord of the brachial plexus.
    • It receives fibers from the C5,C6,C7 nerve roots.
    • It has motor and sensory functions.
  • Course
    • It leaves the axilla and pierces the coracobrachialis muscle, and descends towards the elbow between biceps brachii and brachialis muscles.
    • It continues into the forearm as the lateral cutaneous nerve.


  • Muscular innervations
    • Biceps brachii
    • Brachialis
    • Coracobrachialis
  • Sensory functions
    • It gives rise to the lateral cutaneous nerve of forearm that innervates the skin of the anterolateral aspect of the forearm.

Vascular Supply

  • The brachial artery.

Clinical Significance

See Also


  1. Standring, Susan, and Henry Gray. 2008. Gray's anatomy: the anatomical basis of clinical practice.
Created by:
Alaa Khader on 23 May 2022 19:44:28
Last edited:
24 May 2022 12:18:53