Musles of the elbow Flashcards
O: Supraglenoid tubercle of the scapula (long head), Coracoid process of the scapula (short head)
I: Radial tuberosity, Bicipital aponeurosis
BICEPS BRACHII (FIG. 21.46)
A: Flexes the elbow, Supinates the forearm, Flexes the humerus
N: Musculocutaneous nerve
O: Distal half of anterior humeral shaft
I: Ulnar tuberosity, Coronoid process of the ulna
BRACHIALIS (FIG. 21.47)
A: Flexes the elbow
N: Musculocutaneous nerve
O: Lateral supracondylar ridge of the humerus,
I: Styloid process of the radius
BRACHIORADIALIS (FIG. 21.48)
A: Flexes the elbow
N: Radial nerve
O: Infraglenoid tubercle of the scapula (long head), Posterior proximal humeral shaft (lateral head), Posterior distal humeral shaft (medial head),
I: Olecranon process
TRICEPS BRACHII (FIG. 21.49)
A: Extends the elbow, Extends the humerus, Adducts the humerus
N: Radial nerve
O: Lateral epicondyle of the humerus
I: Olecranon process, Superior eighth of the posterior ulnar shaft
ANCONEUS (FIG. 21.50)
A: Extends the elbow - Locks out the elbow
N: Radial nerve
O: Medial epicondyle of the humerus via the common flexor tendon, Coronoid process of the ulna,
I: Midlateral radial shaft
PRONATOR TERES (FIG. 21.51)
A: Pronates the forearm, Flexes the elbow
N: Median nerve
O: Anterior distal quarter of the ulnar shaft,
I: Anterior distal quarter of the radial shaft
PRONATOR QUADRATUS (SEE FIG. 21.51)
A: Pronates the forearm
N: Median nerve
O: Lateral epicondyle of the humerus, Proximal eighth of the ulnar shaft, Radial collateral ligament, Annular ligament,
I: Proximal lateral radial shaft
SUPINATOR (FIG. 21.52)
A: Supinates the forearm
N: Radial nerve
Flexion of the elbow.
Biceps brachii, Brachialis, Brachioradialis, Pronator teres, Flexor carpi radialis
Extension of the elbow.
Triceps brachii, Anconeus
Pronation of the elbow.
Pronator teres, Pronator quadratus
Supination of the elbow.
Biceps brachii, Supinator
