Iliac Region Flashcards
Quadratus Lumborum INSERTION
12th rib
L1-L4 vertebra
Quadratus Lumborum INNERVATION
T12, L1-L4 Spinal N
Quadratus Lumborum ACTION
Unilateral: bends trunk ipsilaterally
bilateral: bearing down & expiration, stabilizes 12th rib
Psoas Major superficial head ORIGIN
T12-L4 vertebra & IV discs
Psoas Major Deep head ORIGIN
L1-L5 costal processes
Psoas Major Insertion
femur (lesser trochanter) joint
insertion with iliopsoas muscle
Psoas Minor ORIGIN
T12
L1 Vertebrae & IV discs
Psoas Major INNERVATION
direct branches from lumbar plexus (L2-L4)
Psoas Minor INNERVATION
Lumbar Plexus L2-L4
Psoas Major ACTION
hip joint: flexion & external rotation
lumbar spine (with femur fixed):
unilateral: contraction bends trunk laterally
bilaterally: contraction raises trunk from supine position
Psoas Minor ACTION
weak hip flexor
Iliacus ORIGIN
iliac fossa
Iliacus INSERTION
femur (lesser trochanter) joint
insertion with iliopsoas muscle
Iliacus INNERVATION
Femoral N (L2-L4)
Levator Ani 3 types of muscles
Puborectalis
Puboccygeus
Ilioceccygeus