Extensor carpi radialis longus muscle
Last revised by Yoshi Yu on 17 Jan 2023
Citation, DOI, disclosures and article data
Citation:
Mirt G, Yu Y, Bell D, et al. Extensor carpi radialis longus muscle. Reference article, Radiopaedia.org (Accessed on 19 Apr 2024) https://doi.org/10.53347/rID-39871
Permalink:
rID:
39871
Article created:
24 Sep 2015,
Greg Mirt
Disclosures:
At the time the article was created Greg Mirt had no recorded disclosures.
View Greg Mirt's current disclosures
Last revised:
17 Jan 2023,
Yoshi Yu ◉
Disclosures:
At the time the article was last revised Yoshi Yu had no financial relationships to ineligible companies to disclose.
View Yoshi Yu's current disclosures
Revisions:
13 times, by
9 contributors -
see full revision history and disclosures
Systems:
Sections:
Synonyms:
- Extensor carpis radialis longus (ECRL) muscles
Extensor carpis radialis longus (ECRL) muscle is a muscle of the superficial layer in the posterior compartment of the forearm. It passes through the 2nd extensor compartment of the wrist. It is one of the three muscles forming the mobile wad of Henry. It is one of the extrinsic muscles of the hand.
Summary
origin: lateral supracondylar ridge of humerus, lateral epicondyle of humerus, lateral intermuscular septum of arm
insertion: base of 2nd metacarpal on its posterior surface with direct relationship with ECRB which inserts onto the base of the 3rd metacarpal.
arterial supply: radial recurrent artery
innervation: radial nerve (C6, C7)
action: extension and abduction of the wrist joint
References
- 1. Last's anatomy, regional and applied. Churchill Livingstone. ISBN:044304662X. Read it at Google Books - Find it at Amazon
- 2. Moore KL, Agur AMR, Dalley AF. Clinically oriented anatomy. LWW. ISBN:1451119453. Read it at Google Books - Find it at Amazon
- 3. Standring, Susan, and Henry Gray. 2008. Gray's anatomy: the anatomical basis of clinical practice. [Edinburgh]: Churchill Livingstone/Elsevier. http://www.clinicalkey.com/dura/browse/bookChapter/3-s2.0-B9780443066849X5001X
Incoming Links
Articles:
- Proximal intersection syndrome
- Wrist
- Distal intersection syndrome
- Ultrasound of the wrist
- Additional radial wrist extensor muscles
- Humerus
- Common extensor origin of the elbow
- Posterior compartment of the forearm
- Anatomical snuff box
- Extrinsic muscles of the hand
- Extensor carpi radialis brevis muscle
- Lister's tubercle
- Radius
- Elbow
- Mobile wad of Henry
- Metacarpal bones
- Lateral humeral condyle fracture
- Radiocarpal joint
- Extensor compartments of the wrist
- Posterior interosseous nerve syndrome
Cases:
- Extensor carpi radialis longus tendon tear
- Ganglion cyst - wrist
- Wrist extensor tendons (reporting aid)
- Extensor carpi radialis longus tendinosis (orthopedic hardware impingement)
- Orthopaedic hardware induced tenosynovitis (wrist)
- Soft tissues lipoma - elbow
- Orthopedic hardware impingement - wrist
- Extensor carpi radialis brevis tendon tear
- Distal intersection syndrome
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 centres
-
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 centres
-
hand joints
- articulations
- carpometacarpal joint
-
metacarpophalangeal joints
- palmar ligament (plate)
- collateral ligament
-
interphalangeal joints
- palmar ligament (plate)
- collateral ligament
- movements
- ossification centres
- 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
Unable to process the form. Check for errors and try again.