Exam 2: Posterior Thigh

Card Set Information

Exam 2: Posterior Thigh
2012-06-20 15:12:59
anatomy posterior thigh

review of 6/20 lecture on posterior thigh for exam 2
Show Answers:

  1. Which group of muscles are contained in the posterior thigh?
    hamstring mm.
  2. What muscles make up the hamstrings?
    • semitendinosus
    • log head of biceps femoris
    • semimembranosus¬†¬†
  3. Which tendons can be felt on the medial side of the knee?
    • semitendinosus
    • semimembranosus
  4. Which tendon can be felt on the lateral side of the knee?
    biceps femoris
  5. Where do the muscles of the posterior thigh originate?
    ischial tuberosity
  6. Are the biceps femoris positioned laterally or medially?
  7. Are the semimembranosus and semitendinosus positioned laterally or medially?
  8. Which joints do the hamstrings cross?
    hip and knee joints
  9. What do the hamstrings function to do?
    • extend thigh
    • flex knee¬†
  10. Where is the semimembranosus positioned?
    in front of semitendinosus and behind adductor magnus
  11. All muscles in the posterior thigh are supplied by what artery?
    four perforating branches of profunda femoris artery
  12. The inferior gluteal artery supplies several small branches to which muscles of the posterior thigh?
    muscles attached to ischial tubrosity
  13. What artery does the femoral artery continue as?
    popliteal artery
  14. When does the femoral artery become the popliteal artery?
    as it enters the popliteal fossa
  15. What is the function of all the muscles arising from the ischial tuberosity?
    assist gluteus maximus in extending thigh
  16. Which way do patients with paralyzed posterior hamstrings tend to fall?
  17. What would not allow free simultaneous flexion of the thigh and extension of the leg concerning semitendinosus, semimembranosus and long head of the biceps? (bending over with the knees straight to touch the floor)
    The muscles are not long enough
  18. Sharp flexion of the thigh produces flexion of:
    the leg as a result of the resistance of the hamstrings
  19. Extension of the leg produces extension of :
    the thigh
  20. What is the popliteal fossa?
    space behind the knee with no muscle tendons crossing
  21. What is the most injuried nerve in the body?
    common peroneal n.
  22. Where do you find the common peroneal n.?
    right next to head of fibula
  23. What are the consequences if the common peroneal n. is injuried?
    ...continued in tomorrows lecture on the leg...