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The sigmoid arteries, two or three in number, run obliquely downward and to the left behind the peritoneum and in front of the Psoas major, ureter, and internal spermatic vessels.
Their branches supply the lower part of the descending colon, the iliac colon, and the sigmoid or pelvic colon; anastomosing above with the left colic, and below with the superior hemorrhoidal artery.
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List of arteries of torso - abdomen |
AA:
Anterior |
| celiac |
left gastric: esophageal branches
splenic: pancreatic branches (greater, dorsal) – short gastric – left gastro-omental
common hepatic: proper hepatic (cystic), right gastric, gastroduodenal (right gastro-omental, superior pancreaticoduodenal, supraduodenal)
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| SMA |
inferior pancreaticoduodenal – intestinal (jejunal, ileal, arcades, vasa recta) – ileocolic (colic, anterior cecal, posterior cecal, ileal branch, appendicular) – right colic – middle colic
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| IMA |
left colic – sigmoid – superior rectal – marginal
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AA:
Posterior |
visceral: middle suprarenal – renal (inferior suprarenal, ureteral) – gonadal (testicular ♂/ovarian ♀)
parietal: inferior phrenic (superior suprarenal) – lumbar – median sacral
terminal: common iliac (IIA, EIA)
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IIA:
Anterior |
umbilical (superior vesical, to ductus deferens) – middle rectal – obturator (anterior branch, posterior branch) – inferior gluteal (accompanying of ischiadic nerve, crucial anastomosis)
uterine ♀ (helicine, vaginal of uterine, ovarian of uterine, tubal of uterine) – vaginal ♀/inferior vesical ♂
internal pudendal: inferior rectal – perineal (urethral) – posterior scrotal ♂/labial ♀ – bulb of penis ♂/vestibule ♀ – deep artery of the penis ♂ (helicine)/clitoris ♀ – dorsal of the penis ♂/clitoris ♀
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IIA:
Posterior |
iliolumbar (lumbar, iliac) – lateral sacral – superior gluteal
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| EIA |
inferior epigastric (cremasteric, round ligament) – deep circumflex iliac – femoral
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pt:Artérias sigmóideas
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