LE Anatomy

Question 1

the lumbar plexus originated from __-___ and primarily innervates the __ of the leg

Answer 1

L1-L4

front

Question 2

the sacral plexus orginates from ___ -___ and primarily innervates the ___ of the leg

Answer 2

L4-S4
back

Question 3

name the 6 branches of the lumbar plexus

I, I, Get Lazy On Fridays

Answer 3

iliohypogastric
ilioinguinal
genitofemoral
lat fem cut
obturator
fem

Question 4

fem n arises from the post divisions of __ - ___

origin = mid to lower third of the ___ muscle

ant and post ___ branches

Answer 4

L2-L4

psoas

saphenous

Question 5

lat fem cut arises from post divisions of __ - ___

origin: midpoint of the ___

Answer 5

L2-L3

psoas

Question 6

the obturator n arises from the ant divisions of ___-___

origin: medial border of the psoas at the ___ joint

Answer 6

L2-L4

SI

Question 7

what makes up the lumbosacral trunk

Answer 7

L4-L5

Question 8

Sacral plexus 5 branches

SIPPS

Answer 8

sup gluteal
inf gluteal
post cut
pudendal
sciatic

Question 9

sciatic n arises from __ - ___

3 terminal branches = ___ ___, ___ ___, and ___

Answer 9

L4-S3

sup peroneal, deep peroneal, sural

Question 10

tibial branches of sciatic at the __ __ and travels distal btw the medial and lat heads of the gastrocnemius

terminal branch = post tibial n

Answer 10

popliteal fossa

Question 11

common peroneal (fibular nerve) course lat of __ head before branching into deep and superficial n

branches: deep, sup, sural

Answer 11

fibular