Supinator muscle
Citation, DOI, disclosures and article data
Citation:
Trajcevska E, Hacking C, Kang O, et al. Supinator muscle. Reference article, Radiopaedia.org (Accessed on 15 Mar 2025) https://doi.org/10.53347/rID-24403
rID:
24403
Article created:
13 Aug 2013,
Elena Trajcevska
Disclosures:
At the time the article was created Elena Trajcevska had no recorded disclosures.
View Elena Trajcevska's current disclosures
Last revised:
Disclosures:
At the time the article was last revised Craig Hacking had no recorded disclosures.
View Craig Hacking's current disclosures
Revisions:
9 times, by
5 contributors -
see full revision history and disclosures
Systems:
Sections:
Synonyms:
- Supinator
The supinator muscle is, as its name suggests, a supinator of the forearm. It is located in the deep layer of the posterior compartment of the forearm and together with brachialis, forms the floor of the cubital fossa.
Summary
- origin: posterior proximal shaft of ulna; lateral epicondyle of humerus
- insertion: lateral proximal shaft of the radius
- innervation: posterior interosseous nerve (C7 and C8), a continuation of the deep branch of the radial nerve (C7, C8)
- action: supination of the forearm
References
- 1- Butler P, Mitchell A, Healy JC. Applied Radiological Anatomy. Cambridge University Press. (2012) ISBN:0521766664. Read it at Google Books - Find it at Amazon
- 2- Last's anatomy. Churchill Livingstone. ISBN:0443100330. Read it at Google Books - Find it at Amazon
- 3- Moore KL, Dalley AF. Anatomy. Lippincott Williams & Wilkins. (1999) ISBN:0683061410. Read it at Google Books - Find it at Amazon
Incoming Links
Articles:
- Radial collateral ligament of the elbow
- Posterior interosseous nerve
- Cubital fossa
- Humerus
- Proximal radioulnar joint
- Lateral collateral ligament complex of the elbow
- Posterior compartment of the forearm
- Radial recurrent artery
- Radial nerve
- Posterior interosseous artery
- Radius
- Arcade of Frohse
- Elbow
- MRI of the elbow (an approach)
- Interosseous recurrent artery
- Ulna
- Movements of the forearm
- Pulled elbow syndrome
- Posterior interosseous nerve syndrome
- Distal radioulnar joint
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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