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The posterior branch of the obturator artery follows the posterior margin of the foramen and turns forward on the inferior ramus of the ischium, where it anastomoses with the anterior branch.
It gives twigs to the muscles attached to the ischial tuberosity and anastomoses with the inferior gluteal.
It also supplies an articular branch which enters the hip-joint through the acetabular notch, ramifies in the fat at the bottom of the acetabulum and sends a twig along the ligamentum teres to the head of the femur.
This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.
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Arteries of torso |
pulmonary - aorta - ascending aorta
right coronary (sinuatrial nodal, atrioventricular nodal, atrial, right marginal, posterior interventricular)
left coronary (anterior interventricular, left circumflex, left marginal)
aortic arch - brachiocephalic - thyreoidea ima - common carotid
SUBCLAVIAN: internal thoracic: musculophrenic - anterior intercostal - pericardiacophrenic - superior epigastric
costocervical trunk: highest intercostal, deep cervical
DESCENDING AORTA / THORACIC AORTA: bronchial - esophageal - posterior intercostal - subcostal
ABDOMINAL AORTA: Anterior - celiac: left gastric
splenic: pancreatic branches (arteria pancreatica magna) - short gastric - left gastro-omental
common hepatic: proper hepatic (cystic), right gastric, gastroduodenal (right gastro-omental, superior pancreaticoduodenal)
superior mesenteric: inferior pancreaticoduodenal - intestinal - ileocolic (appendicular) - right colic - middle colic
inferior mesenteric: left colic - sigmoid - superior rectal
Posterior - Visceral: middle suprarenal - renal (inferior suprarenal) - testicular/ovarian - Parietal: inferior phrenic (superior suprarenal) - lumbar - median sacral
Terminal branches: common iliac - marginal - internal iliac
INTERNAL ILIAC: Anterior: umbilical (superior vesical, to ductus deferens) - inferior vesical - middle rectal - uterine (azygos of the vagina) - vaginal - obturator (anterior branch, posterior branch)
internal pudendal: (inferior rectal, perineal, artery of the urethral bulb, urethral, deep artery of the penis, dorsal artery of the penis)
inferior gluteal (accompanying of ischiadic nerve, crucial anastomosis)
Posterior: iliolumbar - lateral sacral - superior gluteal
EXTERNAL ILIAC: inferior epigastric (cremasteric) - deep circumflex iliac
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