Brachialis

Authors

Affiliations

Nathaniel Yomogida, B.S., SPT

Doctor of Physical Therapy

B.S. in Kinesiology

Chloë Kerstein, B.S., SPT

Doctor of Physical Therapy

B.A. in Neuroscience

Muscle	Origin	Insertion	Innervation	Action
Brachialis	Distal half of anterior Humerus	Ulnar tuberosity	Musculocutaneous n. Radial n. C5 - C7	Elbow: Flexion

Origin

Distal 1/2 of Anterior humerus¹

Insertion

• Coronoid process^DrKusenose?
• Ulnar tuberosity¹

Innervation

• Musculocutaneous N. (C5, C6)¹
• Radial N. (C7, Minor)¹

Action

Elbow: Flexion¹

MMT

Brachialis is biased when flexing the elbow while maintaining full pronation

Notes

1.

Gilroy AM, MacPherson BR, Wikenheiser JC, Voll MM, Wesker K, Schünke M, eds. Atlas of Anatomy. 4th ed. Thieme; 2020.