Lower Limb Flashcards
Glute Max
O: posterior gluteal line, ilium, sacrus, coccyx
I: gluteal tuberosity, IT band
A: hip extension, lateral rotation
I: inferior gluteal N
Glute Med
O: between post and ant gluteal line
I: superior-posterior greater trochanter
A: hip medial rotation, abduction
I: superior gluteal N
Glute Min
O: between ant/post gluteal line
I: anterior greater trochanter
A: hip medial rotation, abduction
I: superior gluteal N
Piriformis
O: anterior sacrum
I: superior greater trochanter
A: hip lateral rotation
I: N to piriformis
Obturatus Internus
O: obturator membrane
I: medial greater trochanter
A: hip lateral rotation
I:N to obturator internus
Obturator Externus
O: obturator membrane
I: medial greater trochanter
A: hip lateral rotation
I: obturator N
Quadratus Femoris
O: ischial tuberosity
I: mid interochanteric crest
A: hip lateral rotation
I: N to quadratus femoris
What are the anterior compartment muscles of the thigh?
-iliopsoas**
-vastus medialis (quad)*
-vastus lateralis (quad)*
-vastus intermedius (quad)*
-rectus femoris (quad)*
-sartorius**
*knee extension *,**hip flexion
What are the posterior compartment muscles of the thigh?
-semitendinosus
-semimembranosus
-biceps femoris
*hip extension and knee flexion
What are the medial compartment muscles of the thigh?
-pectineus
-adductor brevis
-adductor longus
-adductor magnus
-gracilis
*adduction
Adductor Magnus
O: inferior ramis of pubis & ischial tuberosity
I: linea aspera & adductor tubercle
A: adduction and hip extension
I: obturator N and sciatic N
TFL
O: iliac crest
I: proximal 1/3 of ITB
A: hip abduction and medial rotation
I: superior gluteal N
Semitendinosis
O: ischial tuberosity
I: proximal medial tibia
A: hip extension and knee flexion
I: sciatic N
Semimembranosus
O: ischial tuberosity
I: posterior medial condyle of tibia
A: hip extension and knee flexion
I: sciatic N
Iliacus
O: iliac fossa
I: lesser trochanter
A: hip flexion
I: femoral N
Psoas MJ
O: transverse processes of T12-L5
I: lesser trochanter
A: hip flexion
I: femoral N
Biceps femoris
O: long head= ischial tuberosity, short head= distal lines aspera
I: head of fibula and lateral condyle of tibia
A: both knee flex, long hip extends also
I: sciatic N
Quadratus Lumborum
O: iliac crest
I: transverse process of L1-L5 and 12th rib
A: lumbar side flexion
I: spinal nerves T12 and L1-2
What does the obturator N innervate
-medial thigh
(except hamstring portion of add magnus)
What does the femoral N innervate
anterior thigh + pectineus
What does the ilioinguinal N innervate
abdominals and cutaneous towards groin
What does the iliohypogastric N innervate
abdominals and cutaneous lateral/glute regions
What does the genitofemoral N innervate
cutaneous medial/anterior thigh (superior)
What does the lateral femoral cutaneous nerve innervate
later thigh
