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Sacral plexus – branches
5.6
Tibial nerve, common fibular nerve Muscular branches Proper plantar digital nerves
Common plantar digital nerves Malleolar canal
Tendinous arch of soleus
Lateral plantar nerve
Muscular branch
Common plantar digital nerves Superficial branch
Medial sural cutaneous nerve Tibial nerve Common fibular nerve
Sural nerve
Popliteal fossa
skin of the plantar surface of the medial parts from the first to the fourth finger
Muscular branches
Medial plantar nerve
Proper plantar digital nerves
Muscular branches
Fibular canal
Superficial fibular nerve
Medial dorsal cutaneous nerve
cutaneous nerve Muscular branches
Dorsal digital nerves of the foot
fibularis longus et brevis
tibialis anterior extensor digitorum longus extensor digitorum brevis extensor hallucis longus extensor hallucis brevis skin of the adjacent margin of the first and second finger
levator ani ischiococcygeus
Inferior rectal nerves
external anal sphincter, skin in the area of the crena ani, vestibule and perineum
Dorsal nerve of the penis/clitoris
skin of the penis, clitoris and mucosa of the urethra
Lesser sciatic foramen
Ischioanal fossa and pudendal canal
skin of the posterior surface of the leg, lateral surface of the malleolus and margin of the foot including the lateral margin of the fifth finger
skin of the lateral surface of the calf
Muscular branches
Infrapiriform foramen
skin of the plantar surface of the lateral parts of the fourth and fifth finger
skin of the dorsum of the foot, medial margin of toe and adjacent margin of the second and third finger
Lateral sural cutaneous nerve
Pudendal nerve from the sacral plexus
quadratus plantae
Dorsal digital nerves of the foot skin of the dorsum of the foot, adjacent margin of the third, fourth and fifth finger Intermediate dorsal
Deep fibular nerve
Pudendal nerve
abductor hallucis flexor hallucis brevis flexor digitorum brevis lumbricals (I and II)
flexor digiti minimi brevis abductor digiti minimi, adductor hallucis lumbricals (III and IV), interossei
Deep branch
Behind lateral malleolus Lateral dorsal cutaneous nerve
Sural communicating branch
triceps surae plantaris popliteus tibialis posterior flexor digitorum longus flexor hallucis longus
Perineal nerves Posterior scrotal/labial nerves Muscular branches
skin of the scrotum / labia
superficial transverse perineal muscle deep transverse perineal muscle bulbospongiosus ischiocavernosus external urethral sphincter compressor urethrae sphincter urethrovaginalis
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