PM Muscles Of The Thigh Oiai Flashcards
(22 cards)
Compartments of the thigh
- Anterior compartment
- Medial compartment
- Posterior compartment
Anterior compartment has:
- leg extensors (quadriceps)
- Hip flexors
Medial compartment has:
- Hip adductors
Posterior compartment has:
- Hamstrings
- leg flexors
- thigh flexors
What is the Tensor Fascia Lata (TFL)
- Gluteal muscle
- Tensing it stabilizes the lower limb
- Gluteus max and TFL fuse with fascia lata
What is the Iliotibial tract (IT band/tract)
A lateral thickening of fascia lata
Muscles of the Anterior compartment
Superficial 5
- Iliopsoas
——->psoas major
——-> iliacus
- Sartorius
- Rectus femoris*
- Vastus Lateralis*
- Vastus Medialis*
Deep 1
- Vastus intermedius*
Psoas Major OII
O: T12-L5 transverse process and bodies
I: lesser trochanter of the femur
I: femoral nerve
Iliacus OII
O: iliac fossa
I: lesser trochanter of the femur
I: femoral nerve
Iliopsoas (muscles iia)
Iliacus and psoas major
Insertion: lesser trochanter of the femur
Action: flexion of thigh @hip joint
Innervation: femoral nerve
Sartorius (OIAI)
O: Anterior superior iliac spine (ASIS)
I: Superior medial aspect of the tibial shaft
A:
-thigh flexion @ hip joint
-leg flexion @knee joint
I: femoral nerve
Actions of quadriceps femoris muscles
All: extend knee joint
*rectus femoris also flexes the thighs at the hip joint
Rectus femoris OIAI
O: Anterior inferior iliac spine (AIIS)
I: quadriceps femoris tendon
A:
- flexes thigh at hip joint
- extends leg at knee joint
I: femoral nerve
Vastus lateralis* and Vastus medialis
O: intertrochanteric line of femur
I:
- patella via quadriceps femoris tendon
*lateralis also at tibial tuberosity
Action: extend leg at knee joint
I: femoral nerve
Vastus intermedius
O: anterior and lateral surfaces of femur
I: tibial tuberosity via tendon of quadriceps femoris and patellar ligament
A: extend leg at knee joint
I: femoral nerve
Medial compartment of the thigh
Superficial 3
- Pectineus
- adductor longue
- gracilis
deep
- adductor brebis
- adductor Magnus
Innervation : interstitial nerve (except pectineus; is femoral nerve)
Medial compartment of the thigh
Superficial 3
- Pectineus
- adductor longue
- gracilis
deep
- adductor brebis
- adductor Magnus
Innervation : interstitial nerve (except pectineus; is femoral nerve)
Gracilis OIAI
O: ischiopubic ramus
I: medial surface of tibia
A:
- adduct thigh at hip
- flex leg at knee
I: obturator nerve
Pectineus OIAI
O: Pectineal line of pubis
I: pectineal line of femur
A: adduct and flex thigh at hip
I: femoral nerve
Adductor longus OIAI
O: pubis
I: linea aspera of the femur
A: adduct thigh at hip joint
I: obturator nerve
Adductor Brevis OIAI
O: inferior pubic ramus and pubis
I: Linea aspera on the posterior surface of the femur
A: adduct thigh at hip joint
I: obturator nerve
Adductor Magnus OIAI (2heads)
A: adduct thigh at hip joint
I: adductor tubercle and linea aspera
Adductor head
O: ischiopubic ramus
I: obturator n.
hamstring head
O: ischial tuberosity
I: sciatic nerve
