ILIAC SYSTEM OF ARTERIES

Question 1

COMMON ILIAC ARTERIES

Answer 1

Begin at L4 vertebral level
End Anterior to sacroiliac joint

Terminal branches: External iliac artery, Internal iliac artery

Question 2

EXTERNAL ILIAC ARTERIES

Answer 2

~ 8cm in length (double the length of the internal iliac artery)

Ends midway between ASIS and Symphysis pubis

Branches:Deep circumflex iliac
Inferior epigastric
Gives rise to Cremasteric artery

Question 3

INTERNAL ILIAC ARTERIES

Answer 3

Ends at superior border of Greater sciatic foramen

Divides into: Anterior trunk and Posterior trunk

Question 4

INTERNAL ILIAC ARTERIES:BRANCHES OF ANTERIOR TRUNK

Answer 4

Umbilical: Superior vesical arteries (fundus of urinary bladder), Medial umbilical ligament

Obturator: Adductor and Hamstring muscles Acetabulum

Inferior vesical: Prostate, Seminal vesicles, Pelvic ureter

Vaginal
Uterine
Artery of ductus deferens
Middle rectal 
Internal pudendal artery
Inferior gluteal artery

Question 5

Middle rectal

Answer 5

Anastomoses with Superior rectal (inferior mesenteric,), Inferior rectal (internal pudendal)

Question 6

Internal pudendal artery

Answer 6

Greater sciatic foramen Gluteal region
Curves around ischial spine
Lesser sciatic foramen
Ischioanal fossa Pudendal canal

Question 7

Inferior gluteal artery

Answer 7

Greater sciatic foramen Gluteus maximus
Hamstring (proximal part)
Sciatic nerve

Question 8

BRANCHES OF POSTERIOR TRUNK

Answer 8

Iliolumbar artery
Lateral sacral arteries
Superior gluteal artery-Largest branch of internal iliac artery,Greater sciatic foramen, Gluteus medius and minimus, Tensor fascia lata

Question 9

LERICHE’S SYNDROME

Answer 9

Atheromatous occlusion of the distal abdominal aorta at the bifurcation into the common iliac arteries

This syndrome indicates chronic peripheral arterial insufficiency due to narrowing of the distal aorta.

Causes: Arteriosclerosis, Vasculitis, Thrombosis

Question 10

Clinical presentation of LERICHE’S SYNDROME

Answer 10

Pain, Pulselessness, Pallor, Parasthesia, Prostration, paralysis.