The arteries of the pelvis: anterior trunk IIA Flashcards Preview

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Flashcards in The arteries of the pelvis: anterior trunk IIA Deck (34)
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1

what does the pelvic cavity contain?

organs of reproduction, urinary bladder, pelvic colon, rectum and numerous muscles

2

what is the arterial supply largely via?

the internal iliac artery, with some smaller arteries providing additional supply

3

where does the internal iliac artery originate?

at the bifurcation of the common iliac artery into its internal and external branches

4

what does the external iliac artery supply?

the femoral artery within the lower limb

5

where is the bifurcation of the common iliac artery?

approximately at vertebral level L5-S1

6

where does the internal iliac artery descend?

descends inferiorly, crossing the pelvic inlet to enter the lesser pelvis

7

where is the internal iliac artery's situated during its descent?

During its descent, it is situated medially to the external iliac vein and obturator nerve

8

where does the internal iliac artery divide into anterior and posterior trunks?

At the superior border of the greater sciatic foramen, it divides into anterior and posterior trunks

9

what does the anterior trunk of the internal iliac artery give rise to?

gives rise to numerous branches that supply the pelvic organs, the perineum, and the gluteal and adductor regions of the lower limb

10

what are branches of the internal iliac artery in females? (anticlockwise)

Obturator artery
Umbilical artery
Vaginal artery (female)
Uterine artery (female)
Middle rectal artery
Internal pudendal artery
Inferior gluteal artery

11

what are branches of the internal iliac artery in males? (anticlockwise)

Obturator artery
Umbilical artery
Inferior vesical artery (male)
Middle rectal artery
Internal pudendal artery
Inferior gluteal artery

12

where does the obturator artery travel through?

Travels through the obturator canal

13

what accompanies the obturator artery?

accompanied by the obturator nerve and vein

14

what does the obturator artery supply?

supplies the muscles of the thigh’s adductor region

15

what does the umbilical artery give rise to?

Gives rise to the superior vesical artery

16

what does the superior vesical artery (branch of umbilical artery)?

supplies the superior aspect of the urinary bladder

17

in utero, what does the umbilical artery transport?

In utero, the umbilical artery transports deoxygenated blood from the fetus to the placenta

18

what does the Inferior vesical artery (male) supply?

Supplies the prostate gland, seminal vesicle and inferior aspect of the bladder

19

what is the equivalent of the Inferior vesical artery (male) in females?

the vaginal artery

20

where does the Vaginal artery (female) descend? supplying?

Descends to the vagina, supplying additional branches to the inferior bladder and rectum

21

where does the Uterine artery (female) travel along? to reach? then?

Travels within the broad ligament to reach the cervix, where it ascends along the lateral aspect of the uterus

22

what happens to the uterine artery? where?

At origin of the fallopian tubes, it anastamoses with the ovarian artery

23

during the course of the uterine artery, where does it cross the ureters?

superiorly
(the bridge over the water)

24

where does the middle rectal artery travel?

Travels medially to supply the distal part of the rectum

25

what does the middle rectal artery form anastamoses with?

anastamoses with the superior rectal artery and the inferior rectal artery

26

where is the superior rectal artery derived from?

inferior mesenteric artery

27

where is the inferior rectal artery derived from?

internal pudendal artery

28

where does the internal pudendal artery travel? exit?

Moves inferiorly to exit the pelvis via the greater sciatic foramen

29

what is the internal pudendal artery accompanied by?

the pudendal nerve

30

where does the internal pudendal artery then enter after leaving the pelvis via the greater sciatic foramen?

enters the perineum via the lesser sciatic foramen