Pelvis and Thigh

1
Pelvis and Thigh

• Kinesiology Flash Cards

2
Directions

• The first slide asks a question.
• The second slide answers the question.
• Use these slides like flash cards to test your
  core knowledge.

3
Question

• How many bones are in the thigh?
• Name them.

4
Answer

• There is only one bone in the thigh.
• It is the femur.

5
Question

• What action at the knee does the quadriceps
  muscle group have?

6
Answer

• The quads action at the tibiofemoral (knee) joint
  is extension of the leg.

7
Question

• Place these items in order from superior to
  inferior
• Patella
• Quadriceps femoris
• Patellar ligament
• Tibial tuberosity
• Quadriceps tendon

8
Answer

• In order from superior to inferior they are
• Quadriceps femoris
• Quadriceps tendon
• Patella
• Patellar ligament
• Tibial tuberosity

9
Question

• What is the longest muscle in the human body?

10
Answer

• The sartorius muscle, with its length spanning
  from the ASIS to the pes anserine.

11
Question

• What muscle is nicknamed the tailor muscle?

12
Answer

• Sartorius
• The nickname comes from the position that tailors
  stand in when working at their tall tables, which
  is caused by the action of the sartorius. (Slight
  hip flexion, slight hip abduction, hip lateral
  rotation, and slight knee flexion.) Stand firmly
  on the left leg. Laterally rotate the right leg,
  cross the right foot over the left, and touch the
  toes of the right foot to the ground, just
  lateral to the left foot. This comfy position is
  the tailor position.

13
Question

• Which one of the four quadriceps muscles crosses
  the hip joint?

14
Answer

• Of the quads, only the rectus femoris crosses the
  hip joint. All of the quads cross the knee joint.

15
Question

• What muscle group is the antagonist of the
  quadriceps?

16
Answer

• The hamstrings, the posterior thigh muscles, are
  the antagonists of the quadriceps.

17
Question

• Name the muscles of the hamstrings.

18
Answer

• Semimembranosus
• Semitendinosus
• Biceps femoris (long head and short head)

19
Question

• What are the medial hamstrings?

20
Answer

• The Semis
• Semimembranosus
• Semitendinosus

21
Question

• What are the lateral hamstrings?

22
Answer

• Biceps femoris

23
Question

• In general, the hamstring muscle group originates
  from the ischium. There is one head of the
  hamstring that does not originate at the ischium,
  but rather from the posterior femur. What is that
  muscle?

24
Answer

• The short head of the biceps femoris.
• The long head indeed does attach at the ischial
  tuberosity with the other hamstrings.

25
Question

• What muscles tendons make up the pes anserine?

26
Answer

• Semitendinosus
• Gracilis
• Sartorius
• Mnemonic Device Slippery Green Snakes

27
Question

• Where will you find the pes anserine?

28
Answer

• At the medial, proximal portion of the tibia,
  just distal to the knee joint.

29
Question

• What muscle, whose name means graceful, is the
  most medial muscle of the thigh?

30
Answer

• The gracilis

31
Question

• What muscle is the prime mover of flexion of the
  hip?

32
Answer

• The iliopsoas

33
Question

• What two muscles combine to make the iliopsoas?

34
Answer

• The iliacus and the psoas major.

35
Question

• What part of the iliopsoas attaches at the
  anterior portion of the 12th thoracic vertebra
  and all lumbar vertebra?

36
Answer

• The psoas major origin

37
Question

• What part of the iliopsoas attaches to the iliac
  fossa?

38
Answer

• The origin of the iliacus muscle

39
Question

• What is the insertion of the iliopsoas?

40
Answer

• The lesser trochanter of the femur

41
Question

• What is the only bone to have trochanters?

42
Answer

• The femur

43
Question

• Which muscle of the quadriceps muscle group is
  synergistic with the iliopsoas?

44
Answer

• The proximal part of the rectus femoris also has
  flexion of the hip as an action, making the
  iliopsoas and the rectus femoris synergists.

45
Question

• Where are the deep six lateral rotators located?

46
Answer

• The deep six lateral rotators are found deep to
  the gluteus maximus.

47
Question

• What is the action of the deep six lateral
  rotators?

48
Answer

• They laterally rotate the thigh at the hip.

49
Question

• Name the deep six lateral rotators, from
  superior to inferior.

50
Answer

• Piriformis
• Gemellus superior
• Obturator internus
• Gemellus inferior
• Obturator externus
• Quadratus femoris

51
Question

• What attachment point do the deep six lateral
  rotators fan out from?

52
Answer

• The greater trochanter

53
Question

• What is the only muscle to truly cross the
  sacroiliac joint?

54
Answer

• The piriformis

55
Question

• What muscle can entrap the sciatic nerve, causing
  pseudo sciatica?

56
Answer

• The piriformis muscle

57
Question

• What is the origin of the piriformis muscle?

58
Answer

• The anterior sacrum

59
Question

• What is the origin of the rectus femoris?

60
Answer

• The anterior inferior iliac spine (AIIS)
• Note It is the anterior inferior iliac spine,
  AIIS.

61
Question

• What is the insertion of the biceps femoris?

62
Answer

• The head of the fibula

63
Question

• Where will you find the iliotibial band?

64
Answer

• On the lateral thigh, superficial to the vastus
  lateralis muscle.

65
Question

• What two muscles blend into the iliotibial (IT)
  band at its superior portion?

66
Answer

• Anteriorly, the tensor fascia lata blends with
  the IT band.
• The gluteus maximus blends with the IT band from
  the posterior.

67
Question

• What is the superior attachment of the IT band?

68
Answer

• The superior attachment for the IT band is the
  iliac crest.

69
Question

• What is the inferior attachment of the IT band?

70
Answer

• The inferior attachment of the IT band is the
  lateral proximal tibial shaft, at a point known
  as Gerdys tubercle.

71
Question

• What two joints does the IT band cross?

72
Answer

• The hip and the knee.