Brachioradialis
Forearm & Wrist
Innervated by the radial nerve but flexes the elbow — the 'rule breaker' of forearm muscles.
Function
Flexes forearm, especially in neutral (thumb-up) position
Origin
Lateral supracondylar ridge of humerus
Insertion
Styloid process of radius
Innervation
Radial nerve (C5-C6)