Superior Mesenteric artery emerges directly from Abdominal Aorta (wherein Aorta is not considered the first order in the Vascular Family, just as the arch of aorta does not).
Superior Mesenteric fans out into the spokes or battery of branches from its leftside- they are jejunal, ileal, ileocolic, right colic and middle colic.
As per the CPT Manual- the Superior Mesenteric is the first order, and the Jejunal, ileocolic second order branch of the vascular family. Ileal falls into the same category of the jejunal and ileocolic.
As per my perception, ILEAL BELONGS TO THE SECOND ORDER OF THE VASCULAR FAMILY.
May be people would have included abdominal aorta as the first branch, it is the main parent artery anatomically, though. It is just the same continuation of Arch of Aorta
Could anyone throw more light on this please?
I need to correct my perception if I am wrong.
Thank you