Muscles | Origin, insertion, actions Innervation LOWER LIMB

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Last updated 5:02 AM on 3/27/26
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8 Terms

1
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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

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

1.Origin: Bodies and transverse process of lumbar vertebrae

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

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

  3. femoral nerve

3
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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

4
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<p>What is the 1. origin 2. insertion 3. action 4.innervation of <strong>Rectus Femoris (quadricep muscle)</strong></p><p></p>

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

5
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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

6
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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

7
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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

<ol><li><p>origin: <u>anterior and lateral shaft of the femur </u></p></li><li><p>insertion: tibial tuberosity (via patellar tendon)</p></li><li><p>action: extend leg </p></li><li><p>innervation: femoral nerve</p></li></ol><p></p>
8
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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

<ol><li><p>origin: anterior superior iliac spine</p></li><li><p>insertion: medial, proximal tibia</p></li><li><p>action: <u><mark data-color="#ffd5e9" style="background-color: rgb(255, 213, 233); color: inherit;">Flex leg</mark></u><mark data-color="#ffd5e9" style="background-color: rgb(255, 213, 233); color: inherit;">, laterally rotate thigh</mark></p></li><li><p>innervation: femoral nerve</p></li></ol><p>Sartorius becomes a tendon, once past the knee</p>

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