Lumbosacral Plexus
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lumbar plexus L1-L4 primarily innervates
abdominal wall muscles
anterior thigh muscles
medal thigh muscles
anterior thigh muscles
medal thigh muscles
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the iliohypogastric and ilioinguinal nerve innervates what muscles and what sensory innervation?
internal oblique and transverse abdominals
sensory innervation in pubic region
sensory innervation in pubic region
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the genitofemoral nerve innervates what muscles and what sensory innervation?
sensory to gentitalia and upper anterior thigh
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lat fem cut nerve innervate
sensory only for the skin of anterio-lateral thigh
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femoral nerve innervation
muscle innervation to hip flexors/knee extensors (anterior compartment)
sensory innervation to anterior thigh and medial leg
sensory innervation to anterior thigh and medial leg
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the femoral nerve bursts through the ______ ______ and immediately branches
inguinal canal
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the obturator innervates
the adductor muscles and skin over the medial thigh
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sacral plexus (L4-5 and S1-S4) primarily innervates
post comp thigh muscles
buttock
all of leg and foot below knee except med cut leg
buttock
all of leg and foot below knee except med cut leg
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the two major nerves from the sacral plexus are
sciatic and pudendal
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most nerves of the sacral plexus pass through the
greater sciatic foramen
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the greater sciatic foramen is created by
sacrospinous ligament
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the _______ muscle lies right on top of the sciatic nerve
piriformis
injury could affect sciatic nerve greatly leading to sciatica
injury could affect sciatic nerve greatly leading to sciatica
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largest nerve in the body
sciatic nerve
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sciatic nerve innervated from
L4-S3
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sciatic nerve innervates
posterior thigh muscles
all leg and foot muscles
all joints of the lower limb
all leg and foot muscles
all joints of the lower limb
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sciatic nerve is made of two nerves joined in a connective tissue:
common fibular nerve
tibial nerve
tibial nerve
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pudendal nerve is the main nerve of the
perineum and genitalia
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pudendal nerve gets innervation from
S2-S4
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pudendal nerve exits the pelvis where?
posteriorly through the greater sciatic foramen, then re-enters anteriorly through lesser sciatic foramen