Muscles | Origin, insertion, actions Innervation LOWER LIMB

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(hip and thigh )Iliopsoas Muscles (hip flexors) name them

1. Psoas Major

2. iliacus

3. rectus femoris

4. vastus lateralis

5. vastus medialis

6. vastus intermedius

7. sartorius

What is the 1. origin 2. insertion 3. action 4.innervation of psoas major

1.Origin: Bodies and transverse process of lumbar vertebrae

2. insertion: lesser trochanter (inserts as common muscle —iliopsoas)

3. action: flex thigh (brings thigh forward to torso)

4. femoral nerve

What is the 1. origin 2. insertion 3. action 4.innervation of Iliacus

1. origin: iliac fossa

2. lesser trochanter (inserts as common muscle —iliopsoas)

3. action: flex thigh (brings thigh forward to torso)

4. innervation: femoral nerve

What is the 1. origin 2. insertion 3. action 4.innervation of Rectus Femoris (quadricep muscle)

1. origin: anterior inferior iliac spine

2. insertion: tibial tuberosity via patellar tendon

3. action: extend leg

4. innervation: femoral nerve

What is the 1. origin 2. insertion 3. action 4.innervation of Vastus Lateralis (quadricep muscle)

1. origin: Linea aspera & greater trochanter

2. insertion: Tibial tuberosity (via paterllar tendon)

3. action:extend leg

4. innervation: Femoral nerve

What is the 1. origin 2. insertion 3. action 4.innervation of Vastus Medialis (quadricep muscle)

1. origin: Linea aspera

2. insertion:tibial tuberosity via patellar tendon

3. action: extend leg

4. innervation: femoral nerve

What is the 1. origin 2. insertion 3. action 4.innervation of Vastus intermedius (quadricep muscle)

1. origin: anterior and lateral shaft of the femur

2. insertion: tibial tuberosity (via patellar tendon)

3. action: extend leg

4. innervation: femoral nerve

What is the 1. origin 2. insertion 3. action 4.innervation of Sartorius what happens to the sartorius past the knee? it becomes..?

1. origin: anterior superior iliac spine

2. insertion: medial, proximal tibia

3. action: Flex leg, laterally rotate thigh

4. innervation: femoral nerve

Sartorius becomes a tendon, once past the knee