-
Tensor Fascia Latae - TFL
O: ASIS (superior lateral aspect)
F.D: inferior
I: Lateral condyle of tibia– via Iliotibial Band
- A: Abduction and medial rotation of
- thigh; keep pelvis level
N: Superior gluteal nerve
- S: forms iliotibial band with glute max
-
Sartorius
O: ASIS (slightly inferior to TFL)
F.D: inferior medial
- I: Superior part of medial surface of
- tibia
- A: Flexion, abduction and lateral
- rotation of hip; flexes leg at knee
N: Femoral nerve
S- anterior compartment of thigh muscles
-
Rectus Femoris
- O: AIIS and ilium superior to
- acetabulum
F.D: inferior
- I: Via common tendon through patella,
- to tibial tuberosity
- A: Extend leg at knee joint; also
- flex thigh
N: Femoral nerve
S: only quad to cross the hip joint ; bipennate
-
Vastus Lateralis
- O: Greater trochanter and lateral lip
- of linea aspera
F.D: inferior
- I: Via common tendon through patella,
- to tibial tuberosity
A: Extend leg at knee joint
N: Femoral nerve
- S:anterior comp of thigh muscles ; performs action with vastus medialis
-
Vastus Medialis
- O: Intertrochanteric line and medial
- lip of linea aspera
F.D: inferior lateral
- I: Via common tendon through patella,
- to tibial tuberosity
A: Extend leg at knee joint
N: Femoral nerve
S: anterior compartment of thigh muscles
-
Pectineus
O: Superior ramus of pubis
F.D: inferior lateral
- I: Pectineal line of femur ( just inferior to
- lesser trochanter)
- A: Adduct and flex thigh; assists in
- medial rot of thigh
N: Femoral nerve
- S:
-
Adductor Longus
- O: Body of pubis inferior to pubic
- crest
- F.D: inferior lateral
- I: Middle 1/3 of linea aspera of femur
A: Adducts thigh
N: Obturator nerve
S:
-
Gracilis
O: Body of inferior ramus of pubis
F.D: inferior
- I: Superior part of medial surface of
- tibia
- A: Adducts thigh; flexes leg; helps
- rotate leg medially
N: Obturator nerve
- S:
-
Adductor Magnus
- O:
- Adductor Part: Inferior ramus of pubis, ramus of ischium
Hamstrings Part: Ischial tuberosity
F.D: inferior lateral
- I:
- Adductor Part: Gluteal tuberosity, linea aspera, medial supracondylar line
Hamstring Part: Adductor tubercle of femur
A: Adducts thigh; Adductor part flexes thigh; Hamstring part extends thigh
N: Obturator nerve
- S:
-
Semitendinosus
O: Ischial tuberosity
F.D: inferior
- I: Medial surface of superior part of
- tibia
A: Extend thigh; Flexes leg
N: Sciatic nerve (Tibial division)
- S:
-
Semimembranosus
O: Ischial tuberosity
F.D: inferior
- I: Posterior part of medial condyle
- of tibia
A: Extend thigh; Flexes leg
N: Sciatic nerve (Tibial division)
- S: deep to semitendinosus
-
Biceps Femoris
- O:
- Long Head – Ischial tuberosity
Short Head – linea aspera and lateral supra-condylar line of femur
F.D: inferior
I: Lateral side of head of fibula
A: Flexes leg , extends thigh
- N: Sciatic nerve
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