Anatomy (Neurovasculature Pelvis)

Question 1

Anterior Divisions of the Internal Iliac Artery

Answer 1

1. Umbilical a. (parietal)
2. Obturator a. (parietal)
3. Inferior gluteal a. (parietal)
4. Internal pudendal a. (parietal)

Question 2

Posterior Divisions of the Internal Iliac Artery

Answer 2

1. Superior gluteal a. (parietal)
2. Lateral sacral a. (parietal)
3. Iliolumbar a. (parietal)

Question 3

Umbilical Artery

Answer 3

• Occluded in the adult
• Occluded part can be found in the medial umbilical ligament
• Gives rise to the superior vesicle & uterine artery

Question 4

Obturator Artery

Answer 4

• Supplies the iliacus m. & other muscles in the lower limb

Question 5

Inferior Gluteal Artery

Answer 5

• A terminal branch of the anterior division of the internal iliac artery
• Passes out of the pelvis through the greater sciatic foramen to supply the lower limb

Question 6

Internal Pudendal Artery

Answer 6

• A terminal branch of the anterior division of the internal iliac artery
• Main artery of the perineum

Question 7

Iliolumbar Artery

Answer 7

• Supplies the iliacus & psoas muscles

Question 8

Lateral Sacral Artery

Answer 8

• Supplies spinal branches that enter the anterior sacral foramen

Question 9

Superior Gluteal Artery

Answer 9

• Supply structures in the gluteal region of the lower limb

Question 10

Veins of Pelvis

Answer 10

• Surround organs in true pelvis
• Follow arteries
• Communicate with external & internal vertebral plexuses which allows for disease to spread

Question 11

Sacral vs Pelvic Splanchnics

Answer 11

Sacral - preganglionic sympathetic

Pelvic - preganglionic parasympathetic fibers from S2, S3, S4