Arterial Blood Supply - Pelvis And Lower Limb

Question 1

Abdominal aorta bifurcation

Answer 1

At the level of L4

Question 2

Common iliac a. bifurcation

Answer 2

At the level of the sacroiliac joint (L5-S1)

Question 3

External iliac a. branches

Answer 3

• Deep circumflex a.
• Inf. epigastric a.
  
  • Ascends along the posterior surface of the anterior abdominal wall inside the lateral umbilical fold
  • Anastomoses with the superior epigastric a. within the rectus abdominis, which it supplies
  • Pubic branch
  • Cremasteric a. (enters the inguinal canal and supplies the cremaster and spermatic cord)
  • A. of round ligament of uterus (enters the inguinal canal and travels to the round ligament of the uterus)
• Femoral a.

Question 4

Internal iliac a. branches (anterior division)

Answer 4

• Umbilical a.
  
  • Sup. vesical a.
    
    • A. to ductus deferens
• Inf. vesical a.
• Obturator a.
  
  • Pubic branches
• Uterine a. (crosses the ureter ventrally)
• Vaginal a.
• Middle rectal a.
• Internal pudendal a.
  
  • Inferior rectal a.
  • Perineal a.
    
    • Posterior scrotal/labial branches
  • Dorsal a. of penis/clitoris
  • Deep a. of penis/clitoris
  • Urethral a.
  • A. of bulb of penis/vestibule
• Inf. gluteal a.

Question 5

Internal iliac a. branches (posterior division)

Answer 5

• Iliolumbar a.
• Lateral sacral arteries
• Sup. gluteal a.

Question 6

Femoral a. branches

Answer 6

• Superficial epigastric a.
• Superficial circumflex a.
• External pudendal a.
  
  • Anterior scrotal/labial branches
• Deep a. of thigh
  
  • Medial circumflex femoral a.
  • Lateral circumflex femoral a.
  • Perforating a.
• Descending genicular a.
• Popliteal a.