Origin Superficial Head
Anterior mid-shaft of humerus & lateral intermuscular septum
Origin Deep Head
Anterior aspect of humerus & medial intermuscular septum
Insertion Superficial Head
Ulnar tuberosity
Insertion Deep Head
Aponeurosis branching to ulna & anterior joint capsule
Actions
- Elbow Flexion
Innervation
- Musculocutaneous nerve, C5-C6 (primary nerve supply)
- Radial nerve, C7 (frequently contributes)
- Median nerve (occasionally contributes)
Blood Supply
- Mainly brachial artery & radial recurrent artery tributaries with additional contributions from ulnar collateral arteries
Would you like to learn more about the brachialis muscle? Then check out the brachialis muscle article and video by clicking the link below: Brachialis Muscle Anatomy
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