Lecture 16: Pelvic Vasculature

Question 1

Paired Internal Iliac

Answer 1

• branches of common iliac
• branches to pelvic organs (bladder, uterus, vagina, rectum) and wall
• branches to perineum
• branches to proximal leg

Question 2

Abdominal aorta splits at L5 into –>

Answer 2

L & R common iliac–> splits into external and internal iliac

Question 3

External iliac artery gives rise to _______

Answer 3

inferior epigastric

Question 4

External iliac crosses inguinal lig and becomes ________

Answer 4

femoral artery

Question 5

What branches off the internal iliac artery?

Answer 5

• obturator artery

- superior and inferior gluteal arteries

Question 6

Branches to the proximal leg

Answer 6

1. superior and inferior gluteal a.’s to gluteal muscles

2. obturator a.’s to medial thigh muscles=adductor group

Question 7

Veins

Answer 7

organs–> venous plexi–> internal iliac v.’s –> common iliac v.’s–> inferior vena cava

Question 8

In area of superior rectum, there is anastomosis with what veins?

Answer 8

inferior mesenteric v.’s and hepatic portal system

Question 9

Nerves

Answer 9

• Lumbosacral plexus

- Autonomic

Question 10

Lumbosacral plexus

Answer 10

ventral rami L1-S4

-innervates abdominal wall, QL, iliopsoas

Question 11

Autonomic

Answer 11

1. Sympathetic: Symp. chain ganglia; hypogastric plexus; sacral splanchnic nerves
2. Parasympathetic: Pelvic splanchnic nerves= ventral rami S2-4 (lateral horn)

Question 12

Sympathetic trunks from the base of the skull to _____

Answer 12

coccyx