ELBOW MUSCLES Flashcards
What 4 muscles flex the elbow?
Biceps brachii
Brachialis
Brachioradialis
Pronator teres
What 2 muscles extend the elbow?
Triceps
Anconeus
What 3 muscles pronate the forearm
Pronator teres
Pronator quadratus
Brachioradialis
What 3 muscles supinate the forearm?
Supinator
Biceps brachii
Brachioradialis
Name the 4 muscles at the common extensor origin?
Extensor carpi radius brevis
Extensor carpi ulnaris
Extensor digitorum
Extensor digiti minimi
Name the 4 muscles at the common flexor origin?
Flexor carpi ulnaris
Flexor carpi radialis
Flexor digitorum superficialis
Palmaris Longus
Biceps brachii?
Long head- between greater and lesser tubercles of humerus
Short head- coracoid process of scapula
Converge and insert at radial tuberosity
Flexion/supination
Brachialis?
Anterior distal 1/2 humerus
Coronoid process of ulna
Flexes elbow
Brachioradialis?
Lateral supracondylar ridge of humerus
Lateral distal 1/4 of radius (long tendon)
Flexion/pronation/supination
Triceps?
Long- infraglenoid tubercle of scapula
Medial-inferior to radial nerve groove on humerus
Lateral- superior to radial nerve groove on humerus
Converge to long flat tendon an inserts at olecranon
Extends elbow joint
Anconeus?
Posterior of lateral condyle of humerus
Posterolateral aspect of olecranon
Extends elbow joint
Supinator?
Lateral epicondyle of humerus/supinator fossa of ulna
Superolateral (ant+pos+lat) 1/3 of radius
Supinates forearm
Pronator teres?
Medial supracondylar ridge of humerus
Middle 1/3 of anterolateral aspect of radius
Pronates/assists flexion
humeroulnar joint?
trochlea of humerus + trochlea notch of ulna
flexion/extension
stability from medial/collateral ligaments
humeroradial joint?
capitulum of humerus + head of radius
flexion/extension and pronation/supination
