Teres minor muscle (shown in red), seen from behind.
Muscles on the dorsum of the left scapula, and the Triceps brachii muscle: #3 is Latissimus dorsi muscle #5 is Teres major muscle #6 is Teres minor muscle #7 is Supraspinatus muscle #8 is Infraspinatus muscle #13 is long head of Triceps brachii muscle
Details
Origin
Lateral border of the scapula
Insertion
Inferior facet of greater tubercle of the humerus
Artery
Posterior circumflex humeral artery and the circumflex scapular artery
Nerve
Axillary nerve (C5-C6)
Actions
Laterally rotates the arm, stabilizes humerus
Identifiers
Latin
musculus teres minor
TA98
A04.6.02.010
TA2
2459
FMA
32550
Anatomical terms of muscle
[edit on Wikidata]
The teres minor (Latin teres meaning 'rounded') is a narrow, elongated muscle of the rotator cuff. The muscle originates from the lateral border and adjacent posterior surface of the corresponding right or left scapula and inserts at both the greater tubercle of the humerus and the posterior surface of the joint capsule.[1]
The primary function of the teres minor is to modulate the action of the deltoid, preventing the humeral head from sliding upward as the arm is abducted. It also functions to rotate the humerus laterally. The teres minor is innervated by the axillary nerve.[2]
^Saladin, Kenneth (2015). Anatomy & Physiology: The Unity of Form and Function (7 ed.). New York: McGraw-Hill Education. p. 345. ISBN 9780073403717.
^Saladin, Kenneth (2015). Anatomy & Physiology: The Unity of Form and Function (7 ed.). New York: McGraw-Hill Education. p. 345. ISBN 9780073403717.
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