Pronator quadratus muscle
Citation, DOI, disclosures and article data
Citation:
Knipe H, Jones J, Bell D, et al. Pronator quadratus muscle. Reference article, Radiopaedia.org (Accessed on 21 Mar 2025) https://doi.org/10.53347/rID-23267
rID:
23267
Article created:
Disclosures:
At the time the article was created Henry Knipe had no recorded disclosures.
View Henry Knipe's current disclosures
Last revised:
Disclosures:
At the time the article was last revised Jeremy Jones had no financial relationships to ineligible companies to disclose.
View Jeremy Jones's current disclosures
Revisions:
11 times, by
8 contributors -
see full revision history and disclosures
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Synonyms:
- Pronator quadratus (PQ)
- Pronator quadratus muscles
Pronator quadratus muscle is the most distal muscle that makes up the deepest layer of the anterior compartment of the forearm. It is one of the extrinsic muscles of the hand.
Summary
origin: anterior surface of distal quarter of ulnar shaft
insertion: anterior surface of distal quarter of radial shaft
arterial supply: anterior interosseous artery
innervation: anterior interosseous nerve
action: pronates the forearm
References
- 1. Michael Schünke, Lawrence M. Ross, Erik Schulte et al. General Anatomy and Musculoskeletal System. (2010) ISBN: 9781604062922 - Google Books
- 2. Susan Standring. Gray's Anatomy. (2008) ISBN: 9780443066849 - Google Books
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- Proximal radioulnar joint
- Anterior compartment of the forearm
- Anterior interosseous nerve
- Extrinsic muscles of the hand
- Radius
- Elbow
- Skeletal muscle
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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
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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
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pectoral girdle
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shoulder joint
- articulations
- associated structures
- joint capsule
- bursae
- ligaments
- movements
- scapulothoracic joint
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glenohumeral joint
- arm flexion
- arm extension
- arm abduction
- arm adduction
- arm internal rotation (medial rotation)
- arm external rotation (lateral rotation)
- circumduction
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- ossification centres
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shoulder joint
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elbow joint
- proximal radioulnar joint
- ligaments
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- arterial supply - elbow anastomosis
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wrist joint
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ligaments
- intrinsic ligaments
- extrinsic ligaments
- radioscaphoid ligament
- dorsal intercarpal ligament
- dorsal radiotriquetral ligament
- dorsal radioulnar ligament
- volar radioulnar ligament
- radioscaphocapitate ligament
- long radiolunate ligament
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- associated structures
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hand joints
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metacarpophalangeal joints
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interphalangeal joints
- palmar ligament (plate)
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pectoral girdle
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anterior compartment of the forearm
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posterior compartment of the forearm (extensors)
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accessory muscles
- elbow
- volar wrist midline
- palmaris longus profundus
- aberrant palmaris longus
- volar wrist radial-side
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- flexor indicis profundus
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- accessory head of the flexor pollicis longus (Gantzer muscle, common)
- volar wrist ulnar-side
- dorsal wrist
- blood supply to the upper limb
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arteries
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- axillary artery
- brachial artery (proximal portion)
- ulnar artery
- radial artery
- veins
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arteries
- innervation of the upper limb
- intercostobrachial nerve
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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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