Ligation of anterior division of internal iliac artery

[usha]

Ligation of anterior division of internal iliac artery stops intractable pelvic haemorrhage because of :
One answer only.

Lack of collateral circulation
Shuting off of blood flow
Decrease in arterial pulse pressure
Increased capillary clotting

if you shut of the blood supply or if u ligate and thereis no collaterals in both cases it will lead to ishcemia and necrosis of vital organ and i never heard of by l;igating u can increase cappilary clottung
now you have the answer]