nerves and circulations of the lower extremity Flashcards
(42 cards)
what nerve roots supply the lumbosacral plexus
(T12)L1-S4
what n roots supply the lumbar plexus
(T12)L1-L4
what n roots supply the sacral plexus
L4/L5-S4
what are the branches of the first lumbar n.
iliohypogastric
ilioinguinal
genitofemoral
what nerves branch off the lumbar plexus
femoral and obturator
the saphenous nerve branches off what n.
femoral n.
is the saphenous nerve motor or sensory
sensory
what is the diff btw lumbar contribution to sacral plexus of L4 and L5
L4 is 1/2 and all of L5
what nerves branch off the sacral plexus
inf and sup gluteal nerves, sciatic
what does the sciatic n branch into and when does it do that
tibial and common fibular
behind the knee usually
what m. does the sup gluteal n innervate
TFL, glute med and min
what m. does the inf gluteal innervate
glute max
what m. does the sciatic n. innervate
biceps femoris, semi-tend and semi-mem, adductor magnus
by what path does the tibial n reach the foot
stays post and then goes behind med malleolus to go under foot
what does tibial n split into and where
med and lat plantar and under the foot
how does the common fibular nerve go to the front (ant)
goes around head of fibula
what does the common fibular split into and where
into super and deep
after going around head of fiblua it splits
what b. do the deep and superficial fibular n. run along
deep runs along tibia
superficial runs along fibula
what nerves form the sural n. and what n. did they branch off of
med sural cutaneous (tibial)
lat sural cutaneous (common fibular)
what nerve stays superficial and passes on top of the gastroc
sural n.
which is more med btw deep and superficial fibular n.
depp fibular n.
is sural a sensory or motor n
sensory
when does the thoracic aorta become the abdominal aorta
inf to diaphragm
at what level does the abdominal aorta become common iliac a.
at level of L4
