Muscles on the dorsum of the scapula, and the Triceps brachii. (Teres minor is visible at center.)
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|Latin
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|colspan="2"|[subject #123 ]
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|Origin:
|colspan="2"|lateral border of the scapula
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|Insertion:
|colspan="2"|greater tubercle of the humerus
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|colspan="2"|lateral circumflex humeral artery and the circumflex scapular artery
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|Nerve:
|colspan="2"|axillary nerve
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|Action:
|colspan="2"|laterally rotates and adducts the arm
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|Antagonist:
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|MeSH
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|Dorlands/Elsevier
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The Teres minor is a narrow, elongated muscle of the rotator cuff.
It arises from the dorsal surface of the axillary border of the scapula for the upper two-thirds of its extent, and from two aponeurotic laminæ, one of which separates it from the Infraspinatus, the other from the Teres major.
Its fibers run obliquely upward and lateralward; the upper ones end in a tendon which is inserted into the lowest of the three impressions on the greater tubercle of the humerus; the lowest fibers are inserted directly into the humerus immediately below this impression.
The tendon of this muscle passes across, and is united with, the posterior part of the capsule of the shoulder-joint.
