Anterior Thigh - Ext Knee (Quads)

Question 1

Rectus femoris m. - origin

Answer 1

• AIIS

- Ilium superior to acetabulum

Question 2

Rectus femoris m., Vastus lateralis m., Vastus medialis m., Vastus lateralis m., Vastus intermedius m. - insertion

Answer 2

• Via common tendinous (quad tendon) and independent attachments to base of patella
• Indirectly via patellar lig. to tibial tuberosity
• Medial and lateral vasti attach tibia and patella via aponeurosis

Question 3

Rectus femoris m., Vastus lateralis m., Vastus medialis m., Vastus lateralis m., Vastus intermedius m. - nerve

Answer 3

Femoral n. (L2,3,4)

Question 4

Rectus femoris m., Vastus lateralis m., Vastus medialis m., Vastus lateralis m., Vastus intermedius m. - action

Answer 4

• Extend leg at knee

- RF also steadies hip and helps iliopsoas flex thigh

Question 5

Rectus femoris m. - blood supply

Answer 5

• Deep femoral a.

- Lateral circumflex femoral a.

Question 6

Vastus medialis m. - blood supply

Answer 6

• Femoral a.

- Deep femoral a.

Question 7

Vastus lateralis m. - blood supply

Answer 7

• Deep femoral a.

- Lateral circumflex femoral a.

Question 8

Vastus intermedius m. - blood supply

Answer 8

• Deep femoral a.

- Lateral circumflex femoral a.