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What is Proximal pa of umbilical aery gives rise to? and explain in detail?
*Umbilical aeries - seen as continuations of the right and left dorsal aoae, before their fusion. *After fusion, they are seen as lateral branches of the single dorsal aoa *Cross the 5th lumbar intersegmental aery *pa of umbilical aery, btw the aoa and the anastomosis with internal iliac, disappears so that umbilical aery is now seen as a branch of the internal iliac *Post natal life - proximal pa of the umbilical aery becomes the superior vesical aery, while it's distal pa is obliterated to form the medial umbilical ligament (Reference : I B Singh's Embryology, 10th edition, pg 264)