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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 (also known as the triceps brachii) is the muscle behind the arm, ... The long head runs along the inner side of the upper arm and travels from the scapula to the elbow.
medial head: posterior humerus - (below radial sulcus) olecranon of ulna: deep artery of arm: radial nerve: extends forearm, adducts shoulder (long head). medial head does not function at shoulder. biceps brachii, brachialis: 2 1 articularis cubiti: Upper Limb, Arm, Posterior compartment, right/left deep distal surface of medial head of triceps ...
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 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.
Dumbbells are all you need to carry out an effective tricep workout. Here are the best 8 dumbbell tricep exercises and the benefits of training with dumbbells.
This space is in the posterior wall of the axilla. It is a quadrangular space bounded laterally by surgical neck of the humerus, medially by long head of triceps brachii and inferiorly by teres major. It is bounded superiorly by subscapularis in front, capsule of the shoulder joint in the middle, and behind by teres minor.
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]