Elbow And Radioulnar Joints Flashcards
(11 cards)
Ligaments of the elbow
UCL
RCL
Annular ligament
Interosseus membrane
Biceps brachii
O: long head- supraglenoid tuberal Short head-coracoid process
I: radial tuberosity
A: elbow flexion, supination
N: musculocutaneous nerve
Brachialis
O: Distal anterior humerus shaft
I: coranoid process
A: elbow flexion
N: musculocutaneous nerve
Brachioradialis
O: distal 2/3 of lateral condyloma ridge on humerus
I: radial styloid process
A: elbow flexion, supination, and pronation to neutral position.
N: radial nerve
Pronator Teres
O: distal medial colloid ridge and medial proximal ulna
I: middle 1/3rd of lateral radius
A: forearm pronation
N: median nerve
Pronator Quadratus
O: distal 1/4 of anterior ulna
I: distal 1/4 of anterior radius
A: forearm pronation
N: median nerve
Supinator
O: lateral epicondyle of humerus
I: lateral proximal radius
A: forearm supination
N: radial nerve
Ancaneus
O: posterior surface of lateral condyle
I: post. Surface of lateral olecranon process and upper ulna
A: elbow extension
N: radial nerve
Triceps brachii
O: long head- infraglenoid tubercle
Lateral head- superior half of post. Humerus
Medial head- inferior 2/3 of post. Humerus
I: olecranon process
A: elbow extension
N: radial nerve
Anterior muscles
Biceps brachii
Brachialis
Brachioradialis
Pronator teres
Pronator quadratus
Posterior muscles
Triceps brachii
Anconeus
Supinator
