Muscles of the Posterior Arm – Deep View

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

• • • Deltoid (ghosted)
    • Triceps brachii (the lateral head is cut)

Also seen are the:

• Supraspinatus
• Infraspinatus
• Teres minor
• Teres major
• Latissimus dorsi (cut)
• Supinator

Notes:

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

In this deep view of the right-side posterior (upper) arm, we see the deltoid (ghosted) and triceps brachii (long head is cut). Also seen are the supraspinatus, infraspinatus, and teres minor of the rotator cuff group, and the teres major, latissimus dorsi (cut), and supinator.