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Write the origin, insertion, action and nerve supply of Muscles acting only on hip joint.
| Muscle | Origin | Insertion | Action | Nerve Supply |
|---|---|---|---|---|
| Iliacus | Upper 2/3 rd of iliac fossa | Lower part of lesser trochanter and area below it. | Flexion at hip joint and rotates femur medially | Femoral nerve |
| Psoas major | Sides of lumbar vertebrae | Anterior surface of lesser trochancter | Flexion at hip joint and rotates femur medially (when neck of femur is fractured, distal fragment of femur rotates laterally) | Direct branches from lumbar plexus (L2, L3) |
| Pectineus | Pecten pubis and pectineal surface of superior ramus of pubis | Femoral shaft (posteriorly) , along vertical line from lessor trochanter to linea aspera. | Flexion and adduction at hip joint. | Femoral and obturator nerves. |
Write the origin, insertion, action and nerve supply of Muscles acting on both hip and knee joint.
| Muscle | Origin | Insertion | Action | Nerve Supply |
|---|---|---|---|---|
| Sartorius | Anterior superior iliac spine and the notch below it. | Upper part of medial surface of tibia | On hip joint : Flexion and lateral rotation at hip joint. | Anterior division of femoral nerve |
| On Knee joint : Flexion and medial rotation. | ||||
| Quadriceps femoris | Posterior division of femoral nerve | |||
| Rectus femoris | Straight head : anterior inferior iliac spine | Base of patella and through patellar ligament to tibial tuberosity | On hip joint : Flexion | |
| Reflected head : groove above acetabulum | On knee joint : extension | |||
| Vastus medialis | Lower part of intertrochantric line, | Base and medial border of patella and through patellar ligament to tibial tuberosity . | Extension at knee joint. | |
| Spiral line, | ||||
| Medial lip of linea aspera, Upper 2/3 rd of medial supracondylar line. | ||||
| Vastus intermedius | Upper 3/4th of anterior and lateral surface of shaft of femur. | Base of patella and through patellar ligament to tibial tuberosity | Extenion at knee joint | |
| Vastus lateralis | Upper part of intertrochanter line, | Base and latera border of patella and through patellar ligament to tibial tuberosity | Extension at hip joint. | |
| Anterior and inferior border of greater trochanter, | ||||
| Lateral lip of gluteal tuberosity, | ||||
| Upper ½ of lateral lip of linea aspera | ||||
Name the compartments of thigh and the nerve that supply muscles of these compartments.
Thigh is divided into three muscular compartment
- Nerve supplying muscles of anterior compartment of thigh- Femoral
- Nerve supplying muscles of medial compartment of thigh- Obturator
- Nerve supplying muscles of posterior compartment of thigh- Sciatic
Name the composite muscles of thigh.
Muscles that have dual nerve supply
- Pectineus : femoral & obturator nerve
- Adductor magnus: obturator and tibial part of sciatic nerve.
- Biceps femoris: tibial and common peroneal parts of sciatic nerve.
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