Anconeus muscle

Anconeus muscle

Back of right upper extremity. (Anconeus labeled at bottom center.)
File:Musculusanconeus.png
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

↑ 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

v • d • e 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: superf. - pronator teres - palmaris longus - flexor carpi radialis - flexor carpi ulnaris - flexor digitorum superficialis anterior compartment: deep - pronator quadratus - flexor digitorum profundus - flexor pollicis longus posterior compartment: superf. - mobile wad (brachioradialis, extensor carpi radialis longus and brevis) - extensor digitorum, - extensor digiti minimi - extensor carpi ulnaris posterior compartment: 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 - hypothenar (opponens digiti minimi, flexor digiti minimi brevis, abductor minimi digiti) - palmaris brevis intermediate - lumbrical - interossei (dorsal, palmar)