Muscle
Coracobrachialis
Pierced by musculocutaneous nerve
High-yield
Musculocutaneous nerve pierces coracobrachialis — a reliable landmark.
Overview
A slender muscle of the anterior arm that flexes and adducts the arm and is pierced by the musculocutaneous nerve.
Reference facts
- Origin
Apex of the coracoid process of the scapula
- Insertion
Middle of the medial surface of the humeral shaft
- Action
Flexes and adducts the arm at the shoulder
- Innervation
Musculocutaneous nerve (C5, C6, C7)
- Blood supply
Muscular branches of the brachial artery