Lumbar Plexus Peripheral nerves and sensory region Flashcards
peripheral nerve sensory region(s)
anterior branch–> anterior thigh
posterior branch–>saphenous nerve–> medial aspect of lower leg
obturator nerve sensory region(s)
articular branches of hip joint
medial thigh
LFCN sensory region(s)
lateral thigh to the knee
pudendal nerve sensory region(s)
perineum
anal canal and external sphincter
posterior femoral cutaneous nerve sensory region(s)
posterior hip to mid calf
superficial peroneal nerve sensory region(s)
dorsal surface of foot
posterior tibial sensory region(s)
plantar surface of foot
deep peroneal sensory region(s)
web space between big toe and second toe
sural sensory region(s)
lateral aspects of foot
lumbosacral sensory only nerves include
LFCN, saphenous, sural
lumbosacral combined sensory- motor nerves include
femoral
obturator
posterior tibial
deep peroneal
superficial peroneal
name the 6 branches of the lumbar plexus in order
iliohypogastric
ilioinguinal
genitofemoral
LFCN
obturator
femoral
identify the corresponding roots for the lumbar plexus
L1-L4
identify the corresponding roots for the sacral plexus
L4-S3
identify the corresponding roots for the femoral nerve
L2-L4 (posterior divisions)
identify the corresponding roots for LFCN
L2-L3 (posterior divisions)
identify the corresponding roots for obturator nerve
L2-L4 (anterior divisions)
clinical assessment of lumbar plexus: hip flexion is via
femoral nerve
clinical assessment of lumbar plexus: hip extension is via
sciatic nerve
clinical assessment of lumbar plexus: knee flexion is via
sciatic nerve
clinical assessment of lumbar plexus: knee extension is via
femoral nerve
clinical assessment of lumbosacral plexus: plantar flexion is via
tibial nerve
clinical assessment of lumbosacral plexus: dosiflexion is via
peroneal nerve
clinical assessment of lumbosacral plexus: eversion is via
superficial peroneal nerve