1. Session Six Thigh (Compartments) Posterior Compartment Anterior Compartment Medial Compartment

2. Thigh by deep fascia ( fascia lata ) divided in to three compartments and form anatomical spaces (femoral triangle and adductor canal ). Thigh

3. Thigh ANTERIOR COMPARTMENT POSTERIOR COMPARTMENT MEDIAL COMPARTMENT

4. Ant. Compartment Muscles Arterial Supply Nerve Supply Femoral Artery Femoral nerve Femoral nerve is formed of (L2, L3, L4) greater branches of lumbar plexus Femoral artery is continuation of the external iliac artery Psoas Major Iliacus Sartorius Quadriceps: 1.RRectus femoris 2.VVastus medialis 3.VVastus lateralis 4.VVastus intermedius

5. Back Anterior Compartment Muscles

6. Back Muscles of the anterior compartment of thigh MuscleOriginInsertionInnervationFunction Psoas majorPosterior abdominal wall (lumbar transverse processes, intervertebral discs, and adjacent bodies from T12 toL5 Lesser trochanter of femur Anterior rami L1,L2,L3 Flexes the thigh at the hip joint IliacusPosterior abdominal wall (iliac fossa) Lesser trochanter of femur Femoral nerve [L2,L3] Flexes the thigh at the hip joint SartoriusAnterior superior iliac spine Anterior surface of tibia just inferolateral to tibial tuberosity Femoral nerve [L2,L3] Flex, Abd, & Lat.rotation the thigh at the hip joint and flexes the leg at the knee joint

7. Back Anterior Compartment Muscles

8. Back Muscles of the anterior compartment of thigh (continue) MuscleOriginInsertionInnervationFunction Rectus femoris Straight head originates from the anterior inferior iliac spine; reflected head originates from the ilium just superior to the acetabulum Quadriceps femoris tendon Femoral nerve [L2,L3,L4] Flexes the thigh at the hip joint and Extends the leg at the knee joint Vastus medialis Medial part of intertrochanteric line, Spiral line, medial lip of the linea aspera, medial supracondylar line of femur Quadriceps femoris tendon and medial border of patella Femoral nerve [L2,L3,L4] Extends the leg at the knee joint Vastus interme dius Upper two-thirds of anterior and lateral surfaces of femur Quadriceps femoris tendon and base of patella Femoral nerve [L2,L3,L4] Extends the leg at the knee joint Vastus lateralis Lateral part of intertrochanteric line, margin of greater trochanter, lateral margin of gluteal tuberosity, lateral lip of the linea aspera Quadriceps femoris tendon and lateral margin of patella Femoral nerve [L2,L3,L4] Extends the leg at the knee joint

9. Back

10. Ant. Compartment Muscles Arterial Supply Nerve Supply Sartorius Quadriceps Femoral Artery Femoral nerve Review

11. Post. Compartment Muscles Arterial Supply Nerve Supply Hamstring: 1.SSemitendinosus 2.SSemimembranosus 3.BBiceps femoris Profonda femoris: Branch of femoral artery Sciatic nerve Sciatic nerve is formed of (L4, L5, S1, S2, S3) branches of sacral plexus

12. Back Posterior Compartment Muscles

13. Back Muscles of the posterior compartment of thigh MuscleOriginInsertionInnervationFunction Biceps femoris Long head-inferomedial part of the upper area of the ischial tuberosity; short head-lateral lip of linea aspera Head of fibulaSciatic nerve [L5 to S2] Flexes leg at knee joint; extends and laterally rotates thigh at hip joint and laterally rotates leg at knee joint Semitendi nosus Inferomedial part of the upper area of the ischial tuberosity Medial surface of proximal tibia Sciatic nerve [L5 to S2] Flexes leg at knee joint and extends thigh at hip joint; medially rotates the thigh at the hip joint and leg at the knee joint Semimem branosus Superolateral impression on the ischial tuberosity Groove and adjacent bone on medial and posterior surface of medial condyle of tibia Sciatic nerve [L5,S1,S2] Flexes leg at knee joint and extends thigh at hip joint; medially rotates thigh at the hip joint and leg at the knee joint

14. Back

15. Post. Compartment Muscles Arterial Supply Nerve Supply Hamstring: 1.SemitendinosusSemitendinosus 2.SemimembranosusSemimembranosus 3.Biceps femorisBiceps femoris Profonda femoris Femoral nerve Branch of femoral artery Review Sciatic nerve is formed of (L4, L5, S1, S2, S3) branches of sacral plexus