revisiLUMBOSACRALPLEXUS

ljom....

T12-subcostal

L1-iliohypogastric & ilioinguinal

L1 & L2-genitofemoral

L2-lateral cutaneous n of thigh

L2 & L4-obturator

L3 & L4-femoral

L5, S1, S2, S3-sciatic

S1, S2, S3-posterior cutaneous nerve of thigh

S2 & S3-perforating cutaneous

branches of sciatic

S2, S3, S4-pudendal

...........................................................................

1. subcostal n (T12)

-lat. cut. br. of subcostal n.

-m. of intercostal space 12

2. iliohypogastric n

-lat. cut. br. of iliohypogastric n

-external/internal oblique, transversus abdominis

3. ilioinguinal n

-cut. br. of ilioinguinal n.

-external/internal oblique, transversus abdominis

4. genitofemoral n

-cremastric m.

5. lat. ( femoral ) cut. n. of thigh

-lat. cut. n. of thigh

6. sup. gluteal n.

-tensor fascia lata, gluteus medius, gluteus minimus

7. inf. gluteal n.

-gluteus maximus

8. n. to obturator internus

-obturator internus m.

9. n. to quadratus femoris

-quadratus femoris m.

10. post. cut. n. of thigh

-post. cut. n. of thigh

11. perforating cutaneous n. ( a.k.a inferior cluneal n )

-cut. branch of cluneal n.

12. pudendal n.

• inferior rectal/anal n

-external anal sphincter

-perianal skin ( skin around anus )

• perineal n.

-m. of urogenital triangle

-skin of post. scrotum/labia majora

• dorsal n. of penis/clitoris

-skin of penis/clitoris

13. femoral n.

-iliacus, pectineus, sartorius, quadriceps femoris ( rectus femoris, vastus lateralis/medialis/intermediius )

-ant. cut. n. of thigh

-saphenous n.

-med. cut. n. of thigh

14. obturator n

-gracilis, adductor brevis/longus, obturator externus, adductor magnus

-cut. br. of. obturator n.

15. sciatic n.

• tibial n

[thigh] -hamstring m. ( semitendinosus, semimembranosus, log head of biceps femoris, hamstring portion of adductor magnus )

[leg] -gastrocnemius, soleus, plantaris, popliteus, tibialis posterior, flexor digitorum longus, flexor hallucis longus.

[foot] -

1) lateral plantar n - abductor digiti minimi, adductor hallucis, flexor digiti minimi brevis, 2nd/3rd/4th lumbricals

2) medial plantar n - abductor hallucis, flexor hallucis brevis, 1st lumbrical

3) medial calcaneal n - skin of heel

- sural n. ( lateral aspect of leg and foot )

• common peroneal ( fibular ) n.

[thigh]-short head of biceps femoris

[leg]-

1) deep peroneal n -tibialis anterior, extensor hallucis longus, extensor digitorum longus, fibularis tertius, extensor digitorum brevis

2) superior peroneal n -fibularis longus, fibularis brevis

3) sural communicating br

-lateral cutaneous nerve of calf

sensory innervation

course of nerve

"Apabila engkau melihat orang yang berilmu mencintai dunia, maka curigailah ia mengenai agamanya, kerana orang yang mencintai sesuatu ia akan menyibukkan diri dengan apa yang dicintainya itu"

( Saidina Umar R.A )