Teres minor muscle
Citation, DOI, disclosures and article data
Citation:
Jones J, Elfeky M, Hacking C, et al. Teres minor muscle. Reference article, Radiopaedia.org (Accessed on 11 Dec 2024) https://doi.org/10.53347/rID-5140
Permalink:
rID:
5140
Article created:
Disclosures:
At the time the article was created Jeremy Jones had no recorded disclosures.
View Jeremy Jones's current disclosures
Last revised:
Disclosures:
At the time the article was last revised Mostafa Elfeky had no recorded disclosures.
View Mostafa Elfeky's current disclosures
Revisions:
11 times, by
8 contributors -
see full revision history and disclosures
Systems:
Sections:
Synonyms:
- Teres minor muscles
The teres minor muscle is one of the four muscles that make up the rotator cuff, the others being: supraspinatus, infraspinatus, and subscapularis.
Summary
- origin: middle third of the lateral border of the scapula
- insertion: inferior facet of the greater tubercle of the humerus
- innervation: axillary nerve (C5-6)
- arterial supply: circumflex scapular artery 1
- action: external rotation, weak adductor of the humerus, stabilizes the shoulder joint, holds the head of the humerus down against the upward pull of the deltoid during arm abduction
Gross anatomy
Teres minor originates from the middle third of the lateral border of the scapula, superior to the attachment of the teres major muscle. As it passes superolaterally, it runs adjacent to the lower border of infraspinatus and posterior to the long head of triceps brachii muscle. The lower portion of teres minor runs alongside teres major muscle before the latter passes anterior to the long head of triceps. The tendon of the muscle fuses with the articular capsule of the humerus before inserting on the inferior facet of the greater tubercle.
Quiz questions
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References
- 1. Gray H, Standring S. Gray's anatomy, the anatomical basis of clinical practice. Churchill Livingstone. (2005) ISBN:0443071683. Read it at Google Books - Find it at Amazon
- 2. Schünke M, Ross LM, Schulte E et-al. Atlas of anatomy, general anatomy and musculoskeletal system. Stuttgart; Thieme, c2006. (2006) ISBN:3131420812. Read it at Google Books - Find it at Amazon
- 3. Mcminn. Last's Anatomy. ISBN: 9780729537520
Incoming Links
Articles:
- Arm external rotation
- Infraspinatus muscle
- Humerus
- Footprint of the rotator cuff
- Axillary nerve
- Imaging the shoulder
- Shoulder
- Arm adduction
- Greater tubercle fracture of the shoulder
- Subscapularis muscle
- Quadrangular space
- MRI of the shoulder (an approach)
- Full-thickness rotator cuff tear
- Rotator cuff (mnemonic)
- Scapula
- Posterior humeral circumflex artery
- Medial triangular space
- Movements of the arm
- Quadrangular space syndrome
- Anterior humeral circumflex artery
Cases:
- Intramuscular haemangioma
- Teres minor tendon tear
- Avulsion fracture - greater tuberosity of the humerus
- Quadrilateral space syndrome
- Anterior labral tear- extensive
- Teres minor atrophy
- SLAP tear and supraspinatus full-thickness tear
- Quadrilateral space syndrome
- Teres minor atrophy
- Isolated teres minor muscle fatty infiltration
- Isolated teres minor tendinitis and peritendinitis
- Axillary nerve palsy (MRI)
Multiple choice questions:
Related articles: Anatomy: Upper limb
-
skeleton of the upper limb
- clavicle
- scapula
- humerus
- radius
- ulna
- hand
- accessory ossicles of the upper limb
- accessory ossicles of the shoulder
- accessory ossicles of the elbow
-
accessory ossicles of the wrist (mnemonic)
- os centrale carpi
- os epilunate
- os epitriquetrum
- os styloideum
- os hamuli proprium
- lunula
- os triangulare
- trapezium secondarium
- os paratrapezium
- os radiostyloideum (persistent radial styloid)
- joints of the upper limb
-
pectoral girdle
-
shoulder joint
- articulations
- associated structures
- joint capsule
- bursae
- ligaments
- movements
- scapulothoracic joint
-
glenohumeral joint
- arm flexion
- arm extension
- arm abduction
- arm adduction
- arm internal rotation (medial rotation)
- arm external rotation (lateral rotation)
- circumduction
- arterial supply - scapular anastomosis
- ossification centers
-
shoulder joint
-
elbow joint
- proximal radioulnar joint
- ligaments
- associated structures
- movements
- alignment
- arterial supply - elbow anastomosis
- development
-
wrist joint
- articulations
-
ligaments
- intrinsic ligaments
- extrinsic ligaments
- radioscaphoid ligament
- dorsal intercarpal ligament
- dorsal radiotriquetral ligament
- dorsal radioulnar ligament
- volar radioulnar ligament
- radioscaphocapitate ligament
- long radiolunate ligament
- Vickers ligament
- short radiolunate ligament
- ulnolunate ligament
- ulnotriquetral ligament
- ulnocapitate ligament
- ulnar collateral ligament
- associated structures
- extensor retinaculum
- flexor retinaculum
- joint capsule
- movements
- alignment
- ossification centers
-
hand joints
- articulations
- carpometacarpal joint
-
metacarpophalangeal joints
- palmar ligament (plate)
- collateral ligament
-
interphalangeal joints
- palmar ligament (plate)
- collateral ligament
- movements
- ossification centers
- articulations
-
pectoral girdle
- spaces of the upper limb
- muscles of the upper limb
- shoulder girdle
- anterior compartment of the arm
- posterior compartment of the arm
-
anterior compartment of the forearm
- superficial
- intermediate
- deep
-
posterior compartment of the forearm (extensors)
- superficial
- deep
- muscles of the hand
-
accessory muscles
- elbow
- volar wrist midline
- palmaris longus profundus
- aberrant palmaris longus
- volar wrist radial-side
- accessory flexor digitorum superficialis indicis
- flexor indicis profundus
- flexor carpi radialis vel profundus
- accessory head of the flexor pollicis longus (Gantzer muscle, common)
- volar wrist ulnar-side
- dorsal wrist
- blood supply to the upper limb
-
arteries
- subclavian artery (mnemonic)
- axillary artery
- brachial artery (proximal portion)
- ulnar artery
- radial artery
- veins
-
arteries
- innervation of the upper limb
- intercostobrachial nerve
-
brachial plexus (mnemonic)
- branches from the roots
- branches from the trunks
- branches from the cords
- lateral cord
- posterior cord
- medial cord
- terminal branches
- lymphatic drainage of the upper limb
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