THE INTERNAL ILIAC ARTERY 671 
SS 
r__ Deep femoral 
vessels 
Peroneal nerve 
Tibial nerve 
Posterior femoral 
artery 
N. cutaneus 
SUTH 
Popliteal lymph 
glands 
Gastrocnemius 
Recurrent tarsal 
vessels 
Tarsal or acces- 
sory tendon of 
biceps femoris 
Deep flexor of 
digit 
Gastrocnemius 
tendon 
Superficial flexor 
tendon 
Tuber calcis 
Antervor extensor 
Lateral extensor 
Superficial peroneal nerve 
Deep peroneal nerve 
Middle annular ligament 
Lateral ligament 
Distal annular ligament 
Fic. 580.—Dissection oF PE.Lvis, THIGH, AND LeG or Horse; LATERAL VIEW. 
1, Dorsal branches of last thoracic and first three lumbar nerves; 2, cutaneous branch of fourth lumbar nerve; 3, 
ventral branches of last thoracic nerve; 4, branches of ilio-hypogastric nerve; 5, superficial branch of ilio-inguinal nerve; 
6, great sciatic nerve; 7, 8, nerves to biceps femoris (from posterior gluteal nerve); 9, nerve to semitendinosus (from 
Same); 10, posterior cutaneous nerve of thigh; 1/1, pudic nerve; 12, anterior gluteal vessels and nerves; 13, posterior 
gluteal vessels; 14, branches of obturator vessels; 15, proximal muscular branches of great sciatic nerve to biceps fem- 
oris, semitendinosus, and semimembranosus; 16, nerve to tensor fascie late (from anterior gluteal nerve); 17, gluteus 
profundus; 18, stump of gluteus medius; 19, gemellus; 20, stump of quadratus femoris; 21, stump of biceps femoris; 
22, sacro-coccygeus dorsalis; 22’, sacro-coccygeus lateralis; 23, coccygeus; 24, sacro-coceygeus ventralis; 25, line of 
fusion of aponeuroses of internal and external oblique muscles of abdomen; 25’, aponeurosis of external oblique muscle 
(lamina iliaca); 26, branches of iliaco-femoral v 
s; 27, ilio-lumbar vessels; 28, ilio-lumbar ligament or deep layer 
of lumbo-dorsal fascia; 29, tuber coxe; 30, tuber sacrale; 31, lateral sacro-iliac ligament; 32, sacro-sciatic ligament. 
The ventral part of a nineteenth rib is shown in front of 3. (After Schmaltz, Atlas d. Anat. d. Pferdes.) 
