sacralplexus.txt

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Author:
anjira
ID:
161420
Filename:
sacralplexus.txt
Updated:
2012-07-07 10:24:37
Tags:
anat391
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Description:
sacral plexus
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  1. Superior gluteal
    • Course: Leaves the pelvis through the greater skaldic foramen to enter the gluteal region
    • Distribution: Gluteus medius, minimus & tensor fascia lata muscles
  2. Inferior gluteal
    • Course: Leaves the pelvis through the greater skaldic foramen to enter the gluteal region
    • Distribution: Gluteus maximus muscle
  3. Nerves to deep gluteal muscles
    • Course: Leaves the pelvis through the greater skaldic foramen to enter the gluteal region
    • Distribution: Deep gluteal muscles
  4. Posterior cutaneous nerve of thigh
    • Course: Leaves the pelvis through the greater skaldic foramen to enter the gluteal region
    • Distribution: Skin of the posterior thigh & part of the posterior leg
  5. Pudendal
    • Course: Leaves the pelvis through the greater sciatic foramen to enter the gluteal region, then passes to perineum through the lesser sciatic foramen
    • Distribution: Muscles of the perineum; Skin of perineum
  6. Describe the course of the Sciatic branch as is travels through the Tibial nerve.
    • Leaves the pelvis through greater sciatic sciatic foramen to enter gluteal region
    • Descends in the posterior thigh
    • Then splits above the popliteal fossa into tibial & common fibular nerve
    • Descends through the popliteal fossa, posterior leg, behind the medial malleolus
    • enters the sole of foot & divides into medial & lateral plantar nerves
  7. Describe the distribution of the Sciatic branch as is travels through the Tibial nerve.
    • Hamstring muscles (except the short head of biceps femurs), muscles of the posterior compartment of leg
    • [Muscles of the sole of the foot are supplied by the medial & lateral plantar nerves]
    • Most of the skin of the posterior leg & lateral border of foot
  8. Describe the course of the Sciatic branch as is travels through the Common fibular nerve.
    • Course: Leaves the pelvis through greater sciatic sciatic foramen to enter gluteal region
    • Descends in the posterior thigh
    • Then splits above the popliteal fossa into tibial & common fibular nerve
    • Descends through the popliteal fossa
    • Winds around the neck of the fibula
    • Divides into deep & superficial fibular nerves
    • Deep fibular nerve: descends in anterior leg & enters the dorsum of the foot
    • Superficial fibular nerve: Descends in the lateral leg & superficially enters the dorsum of the foot
  9. Describe the distribution of the Sciatic branch as is travels through the Common fibular nerve.
    • Deep fibular nerve: Muscles of the anterior compartment of the leg & dorsum of the foot
    • Superficial fibular nerve: Muscles of the lateral compartment of the leg Most of the skin of the dorsum of the foot

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