Page 90 - Adams and Stashak's Lameness in Horses, 7th Edition

56 Chapter 1

Sacrotuberal ligament
Biceps femoris m. (vertebral head)
VetBooks.ir Caudal cutaneous femoral n. Caudal gluteal n.
Dorsal sacroiliac ligament
Caudal gluteal a. & v. Ischiatic n.

Semitendinosus m.

Cranial
gluteal v.a.& n.

Iliolumbar a. & v.

Iliacus m.

Iliacofemoral a. & v.

Rectus femoris m.
(lateral tendon cut)

Biceps femoris m. Articularis coxae m.
(tuberal head)
Gluteus profundus m.
Figure 1.50. Deep dissection of right hip. Lateral view. Superficial and middle gluteal muscles and the vertebral head of biceps
femoris removed.

Blood Supply to the Thigh the canal the femoral artery gives off the lateral circum­
The external iliac artery gives off the deep femoral flex femoral artery that enters the quadriceps femoris,
artery just prior to passing through the femoral ring to passing between the vastus medialis and rectus femoris.
continue as the femoral artery. The deep femoral courses The femoral artery directly supplies branches to mus­
between the sartorius and iliopsoas muscles and then cles in this region. At the distal end of the femoral canal,
between the latter and the pectineus. After supplying the saphenous artery leaves the femoral artery and
branches to the deep inguinal lymphocenter, the deep passes to the subcutaneous tissues between the gracilis
femoral artery gives off the large pudendoepigastric and sartorius muscles. It courses caudodistad, related
trunk. This divides into the caudal epigastric artery and caudally to the much larger medial saphenous vein. The
the external pudendal artery. The deep femoral artery saphenous nerve accompanies the vessels as they course
continues ventral to the pubis as the medial circumflex over the tendon of the gracilis. At the level of the proxi­
femoral artery. This supplies the iliopsoas, pectineus, mal crus, the saphenous artery and medial saphenous
external obturator muscles, adductor, and semimembra­ vein each divide into cranial and caudal branches. In its
nosus. Satellite veins accompany the arteries. course, the saphenous artery supplies the sartorius, gra­
The femoral artery continues distad through the fem­ cilis, and adductor muscles as well as fascia and skin.
oral canal accompanied on its caudal side by the femo­ The next branch of the femoral artery is the nutrient
ral vein and cranially by the saphenous nerve. Within artery of the femur, and then the large descending genicular