572 



BLOOD-VASCULAR SYSTEM OF THE HORSE 



Internal iliac lymph gla 



Circumflex iliac vessels 

 External iliac lymph glands 



Inguinal ligaments 



Posterior branch of circum- 

 flex iliac artery 

 External cutaneous nerve 



External spermatic nerve 

 Tensor fasciae lata: 



Femoral nerve and ante- 

 rior femoral vessels 

 Femoral artery 

 Precrural lymph glands 

 Deep inguinal lymph 

 glands 

 Fascia lata 



Internal patellar ligament 

 Middle patellar ligament 



Saphenous nerves 



Saphenous vessels 



Fig. 451. -Dissection op Pelvis, Thigh, and Upper F..rt op Leg op Horse, Lnternal View. 

 n.f ■^;I^u™l3arve.sseI.s; V.c , posterior vena cava; A, aorta (termination); C, sympathetic trunk; 1, internal iliac 

 7m a 1' :n T T'^' 5 middle coccygeal artery; ^, lateral coccygeal artery; 5. umbilic;i a,Terv ^ 

 off, ff internal pudic artery; 5', ve.sico-prostatic artery; 7, obturator artery; S, a. profunda penis (from lef 

 obturator); 9, posterior gluteal (or i.schiatic) ves.sels; 10, external iliac artery; 1, ]', deep femoral artery /I 

 prepub.car ery; .3, branch of deep femoral artery; i^, great .sciatic nerve; //post;rior g lu a " ^^Ib^ve)' 

 internal pud>c nerve; 16 (below near pelvic outlet), suburethral venous plexus; 17, sacro-coccygeus inferior T^ 

 coccygeus; 19 recto-coccygeus; 20, retractor ani; S,, 2t' , two headsof obturator internus; ^/svmphysi pdvis' 



^r urethra (cro.ss-section) , 2S, crus penis (cross-section); 29, suspensory ligaments of anus (= upper part of 

 retractor penis muscle); 36, anal lymph glands; 3/. tibial nerve. (After Schmaltz. Atlas d. .^na[ d.Pfercles.) 





