Answer to Messi Mesentery
Correct answer is D, a jejunal branch. The stem of the question request that you identify an artery that directly supplies the small bowels. The only option from the list is provided by the jejunal branch. All other branches supply the large intestines. As to the clinical scenario of this case, this patient is suffering from a small bowel obstruction (SBO). SBO’s in adults are most frequently caused by adhesions (i.e. from previous surgery), as exemplified by the patient’s well-healed surgical scar.
= Middle colic a.
= Redundant right colic a.
= Right colic a.
= Jejunal branch
= Branch from left colic helping to form Marginal artery of Drummond
Answer to this question is based on material presented in lectures 9 of the Abdomen Lecture Series.
