Origin: Humerus – Lateral supracondylar ridge
Insertion: Radius (lateral distal) – Styloid process
For example hammer curls
Common distortions due to tightness is tennis elbow.
TRICEPS BRACHII (LONG HEAD)
Joint Action performed by Elbow and Shoulder (glenohumeral)
- Extension – elbow
- Extension -shoulder
- Adduction – shoulder
For example straightens elbow
Origin: Scapula – Infraglenoid tubercle
Insertion: Ulna (proximal posterior) – Olecranon process
TRICEPS BRACHII (LATERAL HEAD)
Joint Action performed by Elbow
- Extension (with supination of forearm)
For example straightening of the elbow with the thumb pointed out
Origin: Humerus (posterior) – Superior to radial groove
Insertion: Ulna (proximal posterior) – Olecranon process
TRICEPS BRACHII (MEDIAL HEAD)
Joint Action performed by Elbow
- Extension (with pronation of forearm)
For example straightening of the elbow with the elbow pointed in