exam 2 lecture 6 Flashcards
what muscle groups does the femoral nerve supply?
nerve roots?
sensory supply?
most hip flexors and all knee extensors
L2-4
sensory anterior/medial thigh
what muscles does the obturator nerve supply?
nerve roots?
sensory supply?
hip adductors, obturator externus
L2-4
sensory medial thigh
what nerves make up the sacral plexus?
superior gluteal n
inferior gluteal n
nerve to piriformis
sciatic n (tibial & common fibular)
nerve to obturator internus and gemellus superior
nerve to quadratus femoris and gemellus inferior
what regions do the sacral plexus innervate?
posterior/lateral hip
posterior thigh
entire lower leg
what are the hip flexors?
iliopsoas
sartorius
TFL
rectus femoris
adductor longus
pectineus
attachments for iliopsoas and psoas minor:
iliacus: iliacus fossa/over SIJ
psoas major: TP T12 (blend w diaphragm)
both –> anterior to femoral head and attaches at lesser trochanter
psoas minor: directly ant. to psoas major
what muscle is the prominent femoral on hip flexor and flexor of trunk/pelvis and creates frontal plane stability?
iliopsoas
innervation for iliopsoas and psoas minor:
anterior ramus of spinal nerve L1
what muscle does hip flexion/ER/ABD and is the longest muscle in the body? AKA tailor’s muscle
sartorius
sartorius attachments:
ASIS –> medial proximal tibia @ pes anserine
sartorius innervation:
femoral nerve (post division of L2/3)
TFL attachments:
ilium to IT band
what muscle does hip flexion and abd.
IR (@90º hip flexion)
TFL
TFL innervation:
superior gluteal n. (L4-S1)
what forms fascial sheets of intermuscular septa, has ITB formed deeper & glut max & TFL attach to it?
fascia latae of the thigh
ITB innervation:
superior gluteal n (L4-S1)
inferior gluteal n (L5-S2)