Lecture 30: Pelvic Vessels, Nerves, and Lymphatics Flashcards
What are the branches of the abdominal aorta?
1) Common Iliac Arteries
2) Gonadal arteries: ovarian/testicular
3) Median Sacral Artery
What are the branches of the common iliac artery?
External Iliac Artery: becomes femoral artery
Internal Iliac Artery: supplies pelvic viscera and perineum
What are the posterior divisions of the internal iliac artery?
- Iliolumbar Artery
- Lateral Sacral Arteries
- Superior Gluteal Artery
What does the Iliolumbar Artery supply?
Posterior abdominal wall:
- Iliacus
- Psoas major
- Quadratus Lumborum
- Cauda Equina
What does the Lateral Sacral Arteries supply?
- Piriformis
- Spinal meninges
- Sacral spinal nerves
- Erector spinae
- Skin covering dorsal sacrum
What does the Superior Gluteal Artery supply?
- Piriformis
- Gluteal muscles
- Tensor fascia lata
What are the anterior divisions of the internal iliac artery?
- Umbilical Artery (superior vesicalsss)
- Obturator Artery
- Accessory Obturator Artery
- Inferior Vesical Artery (in males)
- Uterine Artery
- Vaginal Artery
- Middle Rectal Artery
- Internal Pudendal Artery
- Inferior Gluteal Artery
What does the Umbilical Artery supply?
Urinary bladder
What does the Obturator Artery supply?
- Pelvic muscles
- Head of femur
- Medial thigh
What does the Inferior Vesical Artery supply?
- Urinary Bladder
- Ureter
- Prostate
- Seminal Vesicles
What does the Uterine Artery supply?
- Uterus
- Ligaments of uterus
- Uterine tube
- Ovary
- Superior Vagina
Where does the superior rectal artery branch from?
Inferior Mesenteric Artery
What do the external iliac lymph nodes drain?
- Inguinal nodes
- Superior parts of middle to anterior pelvic organs
What do the internal iliac lymph nodes drain?
- Inferior pelvic viscera
- Deep perineum
- Gluteal regions
What do the sacral lymph nodes drain?
Postero-inferior pelvic viscera
