The document summarizes the neurovascular structures of the lower extremity, including: (1) The main arteries and veins of the lower limbs, their branches, and drainage patterns; (2) The formation of the lumbosacral plexus and its parts/branches that provide innervation; (3) The dermatomes supplied by the lumbosacral plexus nerves to the skin of the lower limbs.

1. NEUROVASCULAR STRUCTURES
OF THE LOWER EXTREMITY
Gross Anatomy Lab |
Hershey Gay V. De
Guzman, RMT, MD

2. Main arterial trunks of lower limbs, branches, and
distribution
Venous drainage from lower limbs back to heart
Saphenous venous pattern of superficial veins
Regional lymph nodes
Formation of lumbosacral plexus
Parts/branches of lumbosacral plexus
Dermatomes
Arteries
Veins
Lymphatics
Innervations

3. ARTERIES

4. GLUTEAL REGION

5. GLUTEAL REGION

6. THIGH

7. THIGH

8. THIGH

9. THIGH

10. LEG ARTERIES

11. LEG ARTERIES

12. LEG ARTERIES

13. FOOT

14. FOOT

15. VEINS

16. VEINS

17. INNERVATIONS

28. Iliohypogastric
Ilioinguinal
Genitofemoral
Lateral cutaneous nerve of the thigh
Obturator Nerve
Femoral Nerve
MEMORY AID!
"I, I Get Leftovers On Fridays."

35. L4-S1: Superior Gluteal Nerve
L5-S2: Inferior Gluteal Nerve
S1-S3: Posterior Cutaneous Nerve
S2-S3: Perforating Cutaneous Nerve
S2-S4: Pudendal Nerve
L4-S3: Sciatic Nerve
S.I.P.P.S.
Mnemonic:

36. SACRAL PLEXUS
SACRAL PLEXUS

42. DERMATOMES OF LOWER LIMBS
DERMATOMES OF LOWER LIMBS

43. DERMATOMES OF LOWER LIMBS
DERMATOMES OF LOWER LIMBS

44. THANK YOU!
ANY QUESTIONS?