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The triceps, or triceps brachii (Latin for "three-headed muscle of the arm"), is a large muscle on the back of the upper limb of many vertebrates. It consists of three parts: the medial, lateral, and long head. [ 1 ]
The triceps brachii has a potential to entrap the radial nerve in the triangular interval secondary to hypertrophy. The presence of a fibrous arch in the long head and lateral head further complicates the situation. Repeated forceful extension seen in weight training and sport involving punching may be a precedent to this scenario.
The triangular interval is bounded medially by long head of triceps brachii, laterally by medial border of humerus (some say the lateral head of the triceps), and superiorly by teres major. The radial nerve and profunda brachii artery and vein passes through this space. [3]
The triceps (also known as the triceps brachii) ... The long head runs along the inner side of the upper arm and travels from the scapula to the elbow. The lateral head is on the outer side of the ...
The triceps muscle, scientifically known as the triceps brachii, sits along the backside of your upper arm. While it's one muscle, there are three sections: the long head, lateral head, and medial ...
The infraglenoid tubercle is where the long head of the triceps brachii originates. The infraglenoid tubercle is located on the lateral part of the scapula, inferior to (below) the glenoid cavity. The name infraglenoid tubercle refers to its location below the glenoid cavity.
The infraglenoid tubercle is the part of the scapula from which the long head of the triceps brachii muscle originates. The infraglenoid tubercle is a tubercle located on the lateral part of the scapula, inferior to (below) the glenoid cavity. The name infraglenoid tubercle refers to its location below the glenoid cavity.
The radial nerve gives out muscular branches to supply the long head, medial head, and lateral head of triceps brachii muscles before and during its course in the radial sulcus. After it emerges out from the radial sulcus, it supplies the brachialis, brachioradialis and extensor carpi radialis longus. [3]
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