Anconeus muscle
| Anconeus muscle |
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| Back of right upper extremity. (Anconeus labeled at bottom center.) |
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| Posterior surface of the forearm. Superficial muscles. (Anconeus visible at center right.) |
| Latin |
musculus anconeus |
| Gray's |
subject #125 454 |
| Origin: |
lateral epicondyle of the humerus proximally |
| Insertion: |
lateral surface of the olecranon process and the superior part of the posterior ulna distally |
| Artery: |
deep brachial artery, recurrent interosseous artery |
| Nerve: |
radial nerve (C7, C8, and T1) |
| Action: |
It is partly blended in with the triceps, which it assists in extension of the forearm. It also stabilises the elbow and abducts the ulna during pronation. |
| Dorlands/Elsevier |
m_22/12548375 |
The anconeus muscle is a small muscle on the posterior aspect of the elbow joint.
Some consider anconeus to be a continuation of the triceps brachii muscle.[1][2][3]
Some sources consider it to be part of the posterior compartment of the arm, while others consider it part of the posterior compartment of the forearm.
The Anconeus muscle can be easily palpated just lateral to the olecranon process of the ulna.
Additional images
References
- ^ Williams, P. et al, 1995, Gray's Anatomy, 38th ed., Churchill Livingstone
- ^ Jones, W. et al.(eds) , 1953, Buchanan's Manual of Anatomy, 8th ed., Balliére, Tindall and Cox., pp. 496
- ^ Grant, J. & Basmajian J., 1965, Grant's Method of Anatomy, 7th ed., The Williams & Wilkins Company, Baltimore, pp. 163-164
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List of muscles of upper limbs |
| VERTEBRAL COLUMN |
trapezius - latissimus dorsi - rhomboid (major, minor) - levator scapulae |
| THORACIC WALLS |
pectoralis major - pectoralis minor - subclavius - serratus anterior |
| SHOULDER |
deltoid - rotator cuff (supraspinatus, infraspinatus, teres minor, subscapularis) - teres major |
| ARM |
anterior compartment: coracobrachialis - biceps brachii - brachialis
posterior compartment: triceps brachii - anconeus |
| FOREARM |
anterior compartment: super. - pronator teres - palmaris longus - flexor carpi radialis - flexor carpi ulnaris - flexor digitorum superficialis - deep - pronator quadratus - flexor digitorum profundus - flexor pollicis longus
posterior compartment: super. - mobile wad (brachioradialis, extensor carpi radialis longus and brevis) - extensor digitorum, - extensor digiti minimi - extensor carpi ulnaris - deep - supinator - anatomical snuff box (abductor pollicis longus, extensor pollicis brevis, extensor pollicis longus) - extensor indicis |
| HAND |
lateral volar - thenar (opponens pollicis, flexor pollicis brevis, abductor pollicis brevis, adductor pollicis)
medial volar - palmaris brevis - hypothenar (abductor minimi digiti, flexor digiti minimi brevis, opponens digiti minimi)
intermediate - lumbrical - dorsal interossei - palmar interossei |
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