MSK - Anterior Thigh Muscles (Knee Extensors) Flashcards Preview

ESA 2 > MSK - Anterior Thigh Muscles (Knee Extensors) > Flashcards

Flashcards in MSK - Anterior Thigh Muscles (Knee Extensors) Deck (17):
1

What are the four knee extensor muscles that make up the Quadriceps Femoris?

- Rectus Femoris
- Vastus Lateralis
- Vastus Intermedius
- Vastus Medialis

2

What are the origins of the Rectus Femoris?

- Anterior Inferior Iliac Spine

- Superior to Acetabulum

3

Where does the Rectus Femoris insert?

Patella via the quadriceps tendon

4

What is the innvervation of the Rectus Femoris?

Femoral Nerve (L3, L4)

5

What are the actions of the Rectus Femoris?

- Flexion of the leg at the hip joint

- Extension of the leg at the knee joint

6

What are the origins of the Vastus Lateralis?

- Greater Trochanter

- Intertrochanteric Crest

- Linea Aspera of Femur

7

Where does the Vastus Lateralis insert?

- Patella via the quadriceps tendon

- Tibial tuberosity via patellar ligament

8

What is the innervation of the Vastus Lateralis?

Femoral Nerve (L2-L4)

9

What is the action of the Vastus Lateralis?

- Extension of the leg at the knee joint

10

What is the origin of the Vastus Intermedius?

Anteriolateral aspect of the femoral shaft

11

Where does the Vastus Intermedius insert?

- Patella via the quadriceps tendon

- Tibial tuberosity via patellar ligament

12

What is the innervation of the Vastus Intermedius?

Femoral Nerve (L2-L4)

13

What is the action of the Vastus Intermedius?

Extension of the leg at the knee joint

14

What is the origin of the Vastus Medialis?

- Linea Aspera

- Intertrochanteric Line of femur

15

Where does the Vastus Medialis insert?

- Patella via the quadriceps tendon

- Tibial tuberosity via patellar ligament

16

What is the innervation of the Vastus Medialis?

Femoral Nerve (L2-L4)

17

What are the actions of the Vastus Medialis?

Extension of the leg at the knee joint

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