Relationship between the ulnar nerve and the branches of the radial nerve to the medial head of the triceps brachii muscle

2018 ◽  
Vol 32 (1) ◽  
pp. 137-142 ◽  
Author(s):  
Sung Hun Cho ◽  
In-Hyuk Chung ◽  
U-Young Lee
Keyword(s):  
Ulnar Nerve ◽  
Radial Nerve ◽  
Triceps Brachii ◽  
Medial Head ◽  
Triceps Brachii Muscle

scholarly journals Ulnar nerve contribution in the innervation of the triceps brachii muscle ulnar nerve to the triceps brachii

1970 ◽  
Vol 6 (1) ◽  
pp. 834-839
Author(s):  
DLR Silva ◽  
MP Barros ◽  
TGS Freire ◽  
L Firmino Júnior ◽  
WRB Almeida Filho ◽  
...  
Keyword(s):  
Brachial Plexus ◽  
Ulnar Nerve ◽  
Terminal Branch ◽  
Upper Limbs ◽  
Triceps Brachii ◽  
Medial Head ◽  
Muscle Innervation ◽  
Triceps Brachii Muscle ◽  
Long Head ◽  
Lateral Head

The ulnar nerve is considered the thickest terminal branch of the medial cord in the brachial plexus and most authors does not mention the possibility of this nerve emitting branches to the arm. However, some studies reported that the ulnar nerve could supply the medial head of triceps brachii muscle. The main objective in this study was identifying the presence of ulnar nerve branches in triceps brachii muscle. Sixty upper limbs of adult Brazilian corpses of both sexes were used. The estimated age was between 25 and 80 years old. Every studied piece had the nerves and their branches quantified and measured with a manual mechanic caliper. The branches were photographed and had the data registered in individual files. Were found ulnar nerve branches for all the heads of triceps brachii muscle: 1 branch (9,1%) to lateral head, 2 branches (18,1%) to long head and 8 branches (72,7%) to medial head. Thus, we can conclude that the contribution of ulnar nerve to triceps brachii muscle constitutes an important anatomical variation.Key words: Ulnar nerve; Triceps brachii muscle; Innervation.

Ulnar nerve innervation of the medial head of the triceps brachii muscle: A cadaveric study

2013 ◽  
Vol 26 (8) ◽  
pp. 1028-1030 ◽  
Author(s):  
Marios Loukas ◽  
Sharath S. Bellary ◽  
Neslihan Yüzbaşioğlu ◽  
Mohammadali M. Shoja ◽  
R. Shane Tubbs ◽  
...  
Keyword(s):  
Ulnar Nerve ◽  
Cadaveric Study ◽  
Triceps Brachii ◽  
Medial Head ◽  
Triceps Brachii Muscle

scholarly journals A Unilateral Variation in Triceps Brachii Muscle Demonstrating a Fourth Head

2021 ◽  
Author(s):  
Shveta Swami ◽  
Virendra Budhiraja ◽  
Deepak Sharma ◽  
Rimpi Gupta ◽  
Swati Bansal
Keyword(s):  
Radial Nerve ◽  
Anatomical Variations ◽  
Triceps Brachii ◽  
Posterior Compartment ◽  
Medial Head ◽  
Compression Syndrome ◽  
Male Cadaver ◽  
Triceps Brachii Muscle ◽  
The Right ◽  
Neurovascular Bundles

Abstract Introduction Triceps brachii muscle is the only muscle of posterior compartment of arm, consisting of three heads—long, lateral, and medial. Radial nerve and profunda brachii artery run in the radial groove that separate lateral and medial head. Evolutionarily, triceps has many subheads which either fused or disappeared. Therefore, the knowledge of muscle is essential anthropologically and clinically, and this study aims to study the anatomical variations of triceps brachii muscle. Case Report In the present case, during routine dissections of undergraduate MBBS students, a fourth head of origin of triceps brachii muscle was seen in a male cadaver in the right arm. The variation was seen only unilaterally in cadaver. The origin was tendinous arising from the posteromedial aspect of upper part of the shaft of the humerus close to the surgical neck above the radial groove. This tendon was arching over the neurovascular bundle containing radial nerve and profunda brachii artery. Discussion and Conclusion The variations of triceps brachii muscles are mentioned in literature but are uncommon and if tendinous fourth head is present over the neurovascular bundles, it may lead to compression syndrome. Hence, these variations are of great importance to the radiologists, surgeons, and orthopaedicians while dealing with posterior compartment of arm.

Presence of communication between radial and ulnar nerve at high humeral level and its distribution to triceps brachii muscle

2015 ◽  
Vol 4 (1) ◽  
pp. 39 ◽  
Author(s):  
Naveen Kumar ◽  
SatheeshaB Nayak ◽  
SurekhaD Shetty ◽  
RavindraS Swamy ◽  
Ashwini Aithal
Keyword(s):  
Ulnar Nerve ◽  
Triceps Brachii ◽  
Triceps Brachii Muscle

Cubital Tunnel Syndrome Caused by Abnormal Insertion of Triceps Brachii Muscle

1994 ◽  
Vol 19 (1) ◽  
pp. 38-39 ◽  
Author(s):  
S. MATSUURA ◽  
T. KOJIMA ◽  
Y. KINOSHITA
Keyword(s):  
Clinical Course ◽  
Cubital Tunnel Syndrome ◽  
Medial Epicondyle ◽  
Cubital Tunnel ◽  
Triceps Brachii ◽  
Medial Head ◽  
Triceps Muscle ◽  
Triceps Brachii Muscle ◽  
Tunnel Syndrome ◽  
Operative Findings

Some cases of cubital tunnel syndrome are caused by anatomical abnormalities such as the epitrochleo-anconeus muscle or snapping and bulkiness of the medial head of the triceps brachii muscle. We report a rare cause of cubital tunnel syndrome that has not been reported previously. It was caused by an abnormal insertion of the medial head of the triceps muscle into the medial epicondyle. The clinical course and operative findings are described.

Abnormal innervation of the triceps brachii muscle by the ulnar nerve

2010 ◽  
Vol 35 (5) ◽  
pp. 430-431 ◽  
Author(s):  
MI Miguel-Pérez ◽  
A. Combalia ◽  
JM Arandes
Keyword(s):  
Ulnar Nerve ◽  
Triceps Brachii ◽  
Triceps Brachii Muscle

scholarly journals Highest extent of lateral and medial heads of triceps brachii muscle

2015 ◽  
Vol 32 (02) ◽  
pp. 063-065
Author(s):  
S. Lovesh ◽  
D. Kaur ◽  
M. Jain ◽  
S. Pandey
Keyword(s):  
Shoulder Joint ◽  
Clinical Importance ◽  
Triceps Brachii ◽  
Medial Head ◽  
Accurate Knowledge ◽  
Fracture Management ◽  
Shoulder Region ◽  
Triceps Brachii Muscle ◽  
Formalin Fixed ◽  
Lateral Head

Abstract Introduction: Various studies have been done on triceps brachii muscle but the description of the highest extent of lateral and medial head of triceps brachii muscle remained unexplored that is why this study was undertaken to know the extent of their proximal attachments in relation to anatomical neck of humerus and capsule of shoulder joint. Materials and Methods: The shoulder region of 50 formalin fixed upper limbs were dissected to explore the capsule of shoulder joint to reach the highest extent of lateral & medial head of triceps brachii muscle where the nature of fibres, fleshy or tendinous was noted. Oblique and vertical distances of proximal attachment of lateral & medial head of triceps brachii muscle to the anatomical neck of humerous was measured with the help of a sliding caliper. Results: Medial head of triceps brachii muscle in all the cases was fleshy in origin while that of lateral head; fibres were fleshy and tendinous in 82% & 18% of cases, respectively. Fibres of lateral and medial head were blending with the capsule of shoulder joint in 28% & 6% of cases respectively. Maximum cases of lateral head were having their oblique and vertical distances between 21-40 mm (64% & 58% respectively) while those for medial head were >40 mm (68% & 74% respectively). Conclusion: Accurate knowledge of these anatomical patterns of triceps brachii muscle are of considerable clinical importance in the conduct of reparative open access and arthroscpic surgeries around the shoulder and the fracture management of the upper end of humerus.

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