Corpus3D

Trunk vessels (aorta, vena cava, abdominal branches)

Trunks of internal iliac artery (anterior and posterior)

Trunci anterior et posterior arteriae iliacae internae

Origin
Terminal divisions of the internal iliac artery at the pelvic brim
Insertion
Anterior trunk yields visceral branches (umbilical, obturator, inferior vesical, uterine, middle rectal, internal pudendal, inferior gluteal); posterior trunk yields parietal branches (iliolumbar, lateral sacral, superior gluteal)
Function
Distributes arterial blood to all pelvic organs, perineum, and gluteal region
Innervation
Inferior hypogastric plexus
Movement & chain
Arterial pulsatile flow
Palpation
Not palpated directly
Clinical
Superior gluteal artery injury in posterior pelvic ring disruptions causing catastrophic retroperitoneal hematoma; prostate artery embolization (PAE) for BPH.
Segmental innervation
S2-S4 and L5-S1 spinal levels
In clinical practice
Interventional radiology nursing support during selective pelvic embolization procedures
Region in the model
Trunk vessels (aorta, vena cava, abdominal branches)

Related structures