NBME 21 Internal iliac (NBME Answers)

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Retired NBME 21 Answers

nbme21/Block 2/Question#11 (reveal difficulty score)
A 22-year-old woman, gravida 1, para 1, is ...
Internal iliac 🔍 / 📺 / 🌳 / 📖
tags: anatomy repro msk repeat

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submitted by ∗meryen13(48)

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if postpartum bleeding does not stop you can ligate the internal iliac but you should remember that reproduction is not compromised because the ovarial artery provides a collateral. FA 2020 P 641

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N.b. Uterine artery is a branch of internal iliac artery.

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submitted by ∗thomasalterman(181)

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My thought process was that post-partum bleeding is usually related to the uterus, and much of the pelvic viscera is supplied by branches of the internal iliac artery.

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neonem This sounds like a case of acute endometritis. In any case, uterus is supplied by uterine artery (branch of internal iliac artery) with collateral flow from ovarian artery (comes right off aorta). I don't think there are any branches of external iliac artery into the pelvis; it becomes femoral artery once it passes under inguinal ligament. +4

tsl19 Here's a picture that I found helpful [Female Reproductive Tract arterial supply] (https://teachmeanatomy.info/wp-content/uploads/Blood-Supply-to-Female-Reproductive-Tract.jpg) +18

sympathetikey @tsl - Thank you! +

step1soon uworld Qid:11908 +1

drdoom via @tsl19 (above) -> https://teachmeanatomy.info/wp-content/uploads/Blood-Supply-to-Female-Reproductive-Tract.jpg +3

makingstrides So I always get the internal iliac/ pudendal confused in these scenarios. so here is an image of the internal pudendal. https://www.google.com/search?q=internal+pudendal+artery&rlz=1C1EKKP_enUS758US759&sxsrf=ALeKk03wkEj1REXNkLFd3jPCt0c7jym1Lw:1596498310675&tbm=isch&source=iu&ictx=1&fir=IvE2ErzjSOLh4M%252CxNwJ_8JHwXvPHM%252C_&vet=1&usg=AI4_-kRIU9BHijggl5UhvtbaGBX8RiLDSQ&sa=X&ved=2ahUKEwiZvcTVm4DrAhUCmXIEHafqBycQ_h0wAHoECAgQBA&biw=871&bih=872&dpr=1.1#imgrc=IvE2ErzjSOLh4M&imgdii=pYTY-K8TJT72UM +

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submitted by ∗groovygrinch(39)

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https://teachmeanatomy.info/wp-content/uploads/Blood-Supply-to-Female-Reproductive-Tract.jpg

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drdoom great schematic. +

qball Just to add, the ovarian artery branches from the aorta as well. +1

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