Biceps Brachii Muscle
Origin: Long head: supraglenoid tubercle and the superior portion of the glenoid labrum
Short head: lateral aspect of the apex of the coracoid process of the scapula
Short head: lateral aspect of the apex of the coracoid process of the scapula
Insertion: Radial tuberosity and the bicipital aponeurosis
Actions: Flexion of forearm
Innervation: Musculocutaneous nerve (C5 C6)
Blood Supply: Muscular branches from the brachial artery
Primary Actions of the Biceps Brachii
1. Flexion of the forearm at the elbow
Agonists:
- Brachialis
- Brachioradialis
Antagonists:
- Triceps brachii
- Anconeus
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Secondary Actions of the Biceps Brachii
2. Assists with flexion of the arm at the shoulder
Agonists:
- Deltoid (anterior part)
- Coracobrachialis
- Pectoralis Major (clavicular head)
Antagonists:
- Deltoid (posterior part)
- Triceps Brachii (long head)
- Latissimus Dorsi
- Pectoralis Major (sternal head)
- Teres Major
2. Assists with supination of the forearm
Agonists:
- Supinator
Antagonists:
- Pronator teres
- Pronator quadratus
The biceps femoris muscle contributes to pain in the shoulder, arm, and weakness in the arm.
An excellent book for those beginning the study of anatomy. Coloring helps memory retention.
For intermediary anatomy students learning skeletal and muscle structure.
For beginning and intermediary anatomy . Muscle overlays on the human body. Excellent visuals!