1. Knee region Bones Joint Muscles Artery & Nerves

2. Movements at the Knee Flexion / Extension – Occurs in sagittal plane Rotation: internal / external - Occurs only when the knee is flexed

3. MOVEMENTMUSCLESNERVESEGMENT ExtensionRectus femorisFemoralL 2, 3, 4 Vastus MedialisFemoralL 2, 3, 4 Vastus LateralisFemoralL 2, 3, 4 Vastus IntermediusFemoralL 2, 3, 4 FlexionSemimembranosusSciaticL 5 S 1 SemitendinosusSciaticL 5 S 1 Biceps FemorisSciaticL 5 S 1,2 SartoriusFemoralL 3, 4 GracilisObturatorL 3, 4 GastrocnemiusTibialS 1,2 UnlockingPopliteusTibialL 4, 5 S 1 Outward RotationBiceps FemorisSciaticL 5 S 1,2 Inward RotationSartoriusFemoralL 3, 4 GracilisObturatorL 3, 4 SemitendinosusSciaticL 5 S 1 PRIME MOVERS OF THE KNEE

4. Quadriceps Rectus femoris Vastus medialis Vastus lateralis Vastus intermedius

5. Quadriceps origin

6. Vastus intermedius

7. Vastus medialis Vastus lateralis

8. Rectus femoris

9. Quadriceps insertion

10. Quadriceps action Extension of knee Walking: helps hip flexion Strong anti-gravity

11. Flexion of knee Main flexors: Hamstrings Sartorious Gracilis Minor flexors: Popliteus Plantaris Gasterocnemius

12. Hamstrings

13. Hamstrings action Extension of hip: when flexion of knee is resisted by quadriceps Flexion of knee: when extension of hip is resisted by hip flexors Medial/lateral rotation of the knee joint: when the knee is flexed

14. Medial/lateral rotation Hamstrings

15. Sartorious

16. Gracilis

17. Pes anserinus

18. Flexion of knee Main flexors: Hamstrings Sartorious Gracilis Minor flexors: Popliteus Plantaris Gasterocnemius

20. Popliteus knee unlocker

21. Gasterocnemius

22. Popliteal fossa

23. Popliteal Fossa: Is the diamond shape and lying behind the knee joint 1. Superolaterally: Biceps Femoris m. 2. Superomedially: Semimembranosus & Semitendinosus m s. 3. Inferolaterally: Lat. Head of Gastrocnemius & Plantaris m s. 4. Inferomedially: Med. Head of Gastrocnemius m. 5. Floor: Popliteal surface of Femur, Capsul of Knee Joint, Popliteal m. 6. Roof: Skin, Superficial Fascia and contents, Deep Fascia A) Situation: B) Boundaries:

24. Popliteal fossa (Borders)

25. Popliteal fossa: floor

26. Popliteal fossa (contents)

27. Popliteal artery

29. Popliteal vein

30. Main nerve brunches

31. Cutaneous nerves

33. Arrangement: Nerves & vessels