Below the inguinal ligament, the nerve divides into anterior and posterior branches; the
anterior branch controls the frontal femoral region up to the knee area, and the posterior branch controls the lateral femoral region up to the greater trochanter area.
It is innervated by the
anterior branch of the obturator nerve that enters the muscle 1-2 cm superior to the vascular pedicle.
In addition to the findings of other studies previously conducted, we showed that in leprosy, most of the involvement occurs in the left
anterior branch. The fact that LAH is detected in 42.4% of patients with leprosy is rather remarkable.
Gross anatomy observation: The trunk of the obturator nerve passes through the obturator externus muscle about 3 cm inferiolaterally to the pubic tubercle and divides into anterior and posterior branches, both of which travel superficial (
anterior branch) and deep (posterior branch) to the adductor brevis muscle.
The
anterior branch supplies the quadratus lumborum, sacrospinalis muscles and skin of the flank region.
Abdominal enhanced computed tomography (CT) showed portal vein thrombosis (PVT) in the left and
anterior branch of the portal vein and the wall thickening of the portal vein.
Among the patients with bundle branch block, the right bundle branch block was the most frequently observed, followed by the left
anterior branch block.
The
anterior branch of the media runs close to and parallel to the radius over almost the whole length, while the media posterior is fused with the cubitus anterior after a short distance from base, and that vein reaches the dorsal margin of the tegmen in lateral view (when the wings are spread the hind margin) (Fig.
The
anterior branch of T12 communicates with the iliohypogastric nerve and gives a branch to the pyramidalis.
The posterior branch supplies the skin over the mastoid process and lower external ear, while the
anterior branch supplies the skin overlying the parotid gland and lower preauricular region.
A microcatheter was then advanced progressively into a
anterior branch of the right internal iliac artery with a series of controlled angiograms.