Elbow Joint Articulations a. Humerus and ulna
b. Humerus and radius
c. Ulna and radius Bones of the Elbow Humerus
Ulna
Radius
Stability of Bones Anatomical Structures (Anterior View) Capitulum
Trochlea
Medial epicondyle
Lateral epicondyle
Lateral supracondylar ridge
Medial supracondylar ridge
Coronoid process
Coronoid fossa
Ulnar tuberosity
Radial tuberosity
Radial head
Radial neck Anatomical structures (Posterior View) Olecranon process
Olecranon fossa Ligaments Radial (lateral) Collateral
Ulnar (medial) Collateral Anterior
Posterior
Transverse
Annular Good stability from ligaments Interosseous Membrane
Types of Stress on Ligaments Varus Stress
Valgus Stress Elbow Movements Humeroulnar joint Flexion/Extension
Humeroradial joint Flexion/Extension
Rotation
Proximal Radioulnar joint Pronation/Supination Muscles Stability
Biceps Brachii
Brachialis
Brachioradialis
Triceps Brachii
Anconeus
Pronator Teres
Pronator Quadratus
Supinator Flexors' Role in Throwing
Elbow Torque During Sports Agonists Elbow Flexion
Elbow Extension
Pronation
Supination