Muscles of the Posterior Arm – Superficial View

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The muscles of the posterior arm seen in this superficial view are the:

• • • Deltoid
    • Triceps brachii

Also seen are the:

• Supraspinatus
• Infraspinatus
• Teres minor
• Teres major
• Latissimus dorsi (cut)
• Brachioradialis
• Extensor carpi radialis longus
• Anconeus
• Supinator

Notes:

• • • The deltoid and triceps brachii cross the shoulder (glenohumeral) joint.
    • The triceps brachii crosses the elbow joint.

In this superficial view of the right-side posterior (upper) arm, we see the deltoid and triceps brachii. Also seen are the supraspinatus, infraspinatus, and teres minor of the rotator cuff group, and the teres major and latissimus dorsi (cut), brachioradialis, extensor carpi radialis longus, anconeus, and supinator.