FLEXOR DIVISION 311 
Origin.—(1) The medial epicondyle of the humerus just behind the preceding 
muscle; (2) the medial surface and posterior border of the olecranon. 
WUD, 
Long head of triceps 
FF Biceps brachii 
Medial head of triceps 
[ 
Olecranon 
Ulnar head of deep flexor = : ay 
S : Extensor carpi radialis 
i “Long tendon of biceps 
~~ Brachialis 
~_ Long medial ligament 
Flexor carpi ulnaris 
Flexor carpi radialis 
— Radius 
Accessory carpal bone : 
UE Ca Tendon of extensor carpi 
: : ; obliquus 
Medial ligament of carpus 
—_ Metacarpal tuberosity 
Superficial flexor tendon 
Deep flexor tendon - 
Suspensory ligament 
Distal end of Mc. IT 
Annular ligament Fetlock joint 
Extensor branch of suspensory 
Superficial flexor tendon ligament 
Common extensor tendon 
Deep flexor tendon 
Pastern joint 
Cartilage of third phalanx 
Fic. 281.—Muscies oF Lerr Tuoracic Limp or Horse FRoM Ersow DowNwarpd; MeEpIAL VIEW. 
The fascia and the ulnar head of the flexor carpi ulnaris have been removed. 1, Distal end of humerus; 2, median 
vessels and nerve. 
Insertion.—The proximal edge of the accessory carpal bone. 
Action.—To flex the carpal joint and to extend the elbow. 
