LUMBER PLEXUS
The lumbar plexus is a complex of nerves arises from the ant. rami of the lumbar spinal nerves.
(T12- L5)
I (twice) got lost on Freeways.
- ↳ Iliohypogastric
- Ilioinguinal
- Genitofemoral n.
- lateral femoral cut.
- Obterator n.
- Femoral n.
- T12 — subcostal n.
- motor s: -pyrmidalis
- Transverse abdominalis
- iliohypogastric n.
- m.: Internal oblique + transverse abdominis
- cut.: Skin over the pubis
- L1 — iliolinguinal n.
- motor: - Internal oblique - Transverse abdominis.
- cut.: - skin of the proximal & medial thigh - ♂ scortum (upper) - ♀ momus pubis + labia majora.
- Ant. division — Genitofemoral n.
- mot. cremaster
- cut. ♂ scortum; ♀ labia majora
- L2, L3 — lateral femoral cutaneus n.
- supply: lateral thigh
- peritoneium.
- L4 — Femoral n.
- cut: - Ant. femoral cut. br. - Ant. thigh saphenous br. (medial lower limb)
- mot: - femoris - iliacus - pectineus. - quadriceps.
- obteratorn.
- mot: -adductor longus, magnus, brevis - Gracilis - Obterator externus.
- cut: medial thigh
- Acessory obterator n.
- mot: pectineus m.
- cut: skin of hip joint
- L5 — lumbosacral trunk.