the arteries of the pelvis: posterior trunk & minor arteries of pelvis

Question 1

what does the posterior trunk give rise to?

Answer 1

arteries that supply the lower posterior abdominal wall, posterior pelvic wall and the gluteal region

Question 2

what are the branches of the posterior trunk of the internal iliac artery?

Answer 2

Iliolumbar artery
Lateral sacral arteries (superior and inferior)
Superior gluteal artery

Question 3

where does the iliolumbar artery travel?

Answer 3

Ascends to exit the lesser pelvis, dividing into a lumbar and iliac branch

Question 4

what does the lumbar branch of the iliolumbar artery supply?

Answer 4

psoas major, quadratus lumborum and the posterior abdominal wall

Question 5

what does the iliac branch of the iliolumbar artery supply?

Answer 5

the muscles and bone around the iliac fossa

Question 6

where does the Lateral sacral arteries (superior and inferior) travel?

Answer 6

Travel infero-medially along the posterior pelvic wall

Question 7

what does the Lateral sacral arteries (superior and inferior) supply?

Answer 7

structures in the sacral canal, and the skin and muscle posterior to the sacrum

Question 8

what is the superior gluteal artery a branch of?

Answer 8

The terminal branch of the posterior trunk

Question 9

where does the superior gluteal artery exit the pelvic cavity?

Answer 9

via the greater sciatic foramen

Question 10

where does the superior gluteal artery enter the gluteal region?

Answer 10

superiorly to the piriformis muscle

Question 11

what is the major blood supply function of the superior gluteal artery?

Answer 11

blood supply to the muscles and skin of the gluteal region

Question 12

what are the minor arteries of the pelvis?

Answer 12

Gonadal Arteries
Median Sacral Artery
Superior Rectal Artery

Question 13

which is the major gonadal artery in females?

Answer 13

ovarian artery

Question 14

where does the ovarian artery arise from in females?

Answer 14

arises from the abdominal aorta, distal to the origin of the renal arteries

Question 15

where does the ovarian artery travel from going to the pelvis?

Answer 15

The artery descends towards the pelvis, crossing the pelvic brim and the origin of the external iliac vessels (L5-S1)

Question 16

where does the ovarian artery travel after it is in the pelvic level?

Answer 16

It moves medially, dividing into an ovarian branch and tubal branches, which supply their respective structures

Question 17

where does the testicular artery reach?

Answer 17

the scrotum

Question 18

how does the testicular artery reach the scrotum?

Answer 18

via the inguinal canal

Question 19

what does the testicular artery travelling within the inguinal canal to reach the scrotum mean?

Answer 19

does not actually enter the pelvis

Question 20

where does the median sacral artery originate from?

Answer 20

the posterior aspect of abdominal aorta, at its bifurcation into the common iliac arteries

Question 21

where does the median sacral artery descend?

Answer 21

It descends anteriorly to the L4 and L5 vertebrae, the sacrum and the coccyx, contributing to the arterial supply of these regions

Question 22

what is the superior rectal artery continuation of?

Answer 22

the terminal continuation of the inferior mesenteric artery

Question 23

course of travel of superior rectal artery?

Answer 23

It crosses the left common iliac artery and descends in the mesentery of the sigmoid colon

Question 24

what does the superior rectal artery give rise to?

Answer 24

branches that supply the rectum