biceps brachii

Introduction

Superficial muscle of the anterior compartment of the arm.

Origin

• long head: supraglenoid tubercle of the scapula
• short head: coracoid process

Insertion

tuberosity of the radius

Action

• flexes elbow
• supinates forearms (primary supinator of forearm)

Innervation

musculocutaneous nerve (C6)

More general terms

• skeletal muscle (voluntary muscle)

Additional terms

• biceps tendonitis (bicipial tendonitis)
• Speed's test
• Yergason's test

Component of

• upper extremity (upper limb)