Long head originates from the infraglenoid tubercle of the scapula. Lateral head originates from the humerus (superior to the radial groove). Medial head originates from the humerus (inferior to the radial groove). Distally, the heads converge into one tendon which inserts onto the olecranon of the ulna.
Apr 19, 2023
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The triceps brachii muscle consists of a long, medial and lateral head, that originate from their respective attachments on the humerus and scapula.
Origin: posterior aspect of the humerus, superior to the radial groove · Insertion: Posterior surface of the olecranon process of the ulna, capsule of the elbow ...
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Triceps Brachii. Origin: Long head: infraglenoid tubercle of scapula ... Insertion: Proximal end of olecranon process of ulna and fascia of forearm
Origin: Posterior surface of humerus and infraglenoid tubercle of scapula. Insertion: Olecranon process of ulna and adjacent antebrachial fascia. Action: ...
Origin: posterior aspect of the humerus, superior to the radial groove · Insertion: olecranon of ulna · Action: extension of the forearm · Innervation: radial ...
Origin, Long head: infraglenoid tubercle of scapula. Lateral head: above the radial groove. Medial head: below the radial groove ; Insertion · Olecranon process ...
Origin: Infraglenoid tubercle of scapula. Insertion: Olecranon of ulna and adjacent antebrachial fascia. Action: Extends forearm at elbow joint. Innervation: ...
Even though the triceps brachii has three separate muscle heads and three separate points of origin, this muscle only has a single point of insertion. The ...
