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Flashcards in Knee Deck (76):
1

Where does the abdominal aorta bifurcate?

L3/L4

2

What is the path of the sciatic nerve?

-comes underneath piriformis and has two branches: tibial nerve and common peroneal nerve

3

What are the boundaries of the femoral triangle?

-inguinal ligament
-sartorius muscle
-adductor longu muscle

4

What is the adductor canal?

tunnel in middle third of thigh from apex of femoral triangle to opening in adductor magnus

5

What is in the femoral triangle?

femoral nerve
femoral artery
femoral vein
lymphatics
NAVL

6

Femoral nerve:

L2-L4
anterior cutaneous nerve branches
motor nerves to muscles of anterior compartment
saphenous nerve

7

Saphenous nerve is

medial cutaneous nerve

8

Nerves of thigh

-obturator (L2-L4)
-sciatic (L4-S3)
-femoral (L2-L4)

9

Obturator nerve (L2-L4) posterior branch

-obturator branch
-adductor brevis
-adductor portion of adductor magnus

10

Obturator nerve (L2-L4) anterior branch

-adductor longus
-gracilus
-adductor brevis
-cutaneous branches to skin on medial thigh

11

Sciatic nerve branches

tibial nerve
common fibular nerve

12

Tibial nerve

biceps femoris (long head)
-semitendinosus
-semimembranosus

13

Common fibular nerve

-biceps femoris (short head)

14

Pectineus orgin

pecten pubis and pectineal surface of pubis

15

Pectineus insertion

pectineal line of femur

16

Pectineus action

adducts the thigh and flexes the hip joint
if top muscle is tight=lateral tilt

17

Pectineus innervation

femoral but may receive innervation from obturator nerve

18

Adductor Brevis origin

Anterior surface of inferior pubic ramus, inferior to origin of adductor longus

19

Adductor Brevis insertion

Pectineal line and superior part of medial lip of linea aspera

20

Adductor brevis action

Adducts and flexes the thigh, and helps to laterally rotate the thigh

21

Adductor brevis innervation

Anterior or posterior division of obturator nerve (L2, L3, L4)

22

Adductor Longus origin

Anterior surface of body of pubis, just lateral to pubic symphysis

23

Adductor Longus Insertion

Middle third of linea aspera, between the more medial adductor magnus and brevis insertions and the more lateral origin of the vastus medialis

24

Adductor longus action

Adducts and flexes the thigh, and helps to laterally rotate the hip joint

25

Adductor longus innervation

anterior division of obturator nerve (L2,L3,L4)

26

Adductor magnus origin

Inferior pubic ramus, ischial ramus, and inferolateral area of ischial tuberosity

27

Adductor magnus insertion

Gluteal tuberosity of femur, medial lip of linea aspera, medial supracondylar ridge, and adductor tubercle

28

Adductor magnus action

Powerful thigh adductor; superior horizontal fibers also help flex the thigh, while vertical fibers help extend the thigh

29

Adductor magnus innervation

Posterior division of obturator nerve innervates most of the adductor magnus; vertical or hamstring portion innervated by tibial nerve (L2, L3, L4

30

What leaves through the adductor hiatus?

femoral nerve and femoral artery

31

When the femoral vessels enter ______, they are called ______.

popliteal fossa, poplital vessels

32

Gracilis origin

Inferior margin of pubic symphysis, inferior ramus of pubis, and adjacent ramus of ischium

33

Gracilis insertion

Medial surface of tibial shaft, just posterior to sartorius

34

Gracilis action

Flexes the knee, adducts the thigh, and helps to medially rotate the tibia on the femur

35

Gracilis innervation

anterior division of obturator nerve

36

Sartorius origin

anterior superior iliac spine

37

Sartorius insertion

superior aspect of the medial surface of the tibial shaft near the tibial tuberosity

38

Sartorius action

flexes and laterally rotates the hip joint and flexes the knee

39

Sartorius innervation

femoral nerve (L2,L3,L4)

40

Tensor Fascia Lata origin

anterior superior iliac spine, outer lip of anterior iliac crest and fascia lata

41

Tensor Fascia Lata insertion

iliotibial band

42

Tensor Fascia Lata innervation

superior gluteal nerve

43

What muscles are innervated by superior gluteal nerve?

gluteus med, and glut min, tensor fascia lata

44

Rectus Femoris origin

Straight head from anterior inferior iliac spine; reflected head from groove just above acetabulum

45

Rectus Femoris insertion

Base of patella to form the more central portion of the quadriceps femoris tendon

46

Rectus Femoris action

extends the knee

47

Rectus Femoris innervation

muscular branches of femoral nerve

48

Vastus Intermedius origin

Superior 2/3 of anterior and lateral surfaces of femur; also from lateral intermuscular septum of thigh

49

Vastus Intermedius insertion

Lateral border of patella; also forms the deep portion of the quadriceps tendon

50

Vastus Intermedius action

extends the knee

51

Vastus Intermedius innervation

muscular branches of femoral nerve

52

Vastus medialis origin

Inferior portion of intertrochanteric line, spiral line, medial lip of linea aspera, superior part of medial supracondylar ridge of femur, and medial intermuscular septum

53

Vastus medialis insertion

Medial base and border of patella; also forms the medial patellar retinaculum and medial side of quadriceps femoris tendon

54

Vastus medialis action

extends the knee

55

Vastus medialis innervation

muscular branches of femoral nerve

56

Vastus Lateralis origin

Superior portion of intertrochanteric line, anterior and inferior borders of greater trochanter, superior portion of lateral lip of linea aspera, and lateral portion of gluteal tuberosity of femur

57

Vastus Lateralis insertion

Lateral base and border of patella; also forms the lateral patellar retinaculum and lateral side of quadriceps femoris tendon

58

Vastus Lateralis action

extends the knee

59

Vastus Lateralis innervation

muscular branches of femoral nerve

60

Hamstring origin

Common tendon with semitendinosus from superior medial quadrant of the posterior portion of the ischial tuberosity

61

Hamstring insertion

Primarily on fibular head; also on lateral collateral ligament and lateral tibial condyle

62

Hamstring action

Flexes the knee, and also rotates the tibia laterally; long head also extends the hip joint

63

Hamstring innervation

tibial nerve (L5,S1,S2)

64

Biceps Femoris origin

Lateral lip of linea aspera, lateral supracondylar ridge of femur, and lateral intermuscular septum of thigh

65

Biceps Femoris insertion

Primarily on fibular head; also on lateral collateral ligament and lateral tibial condyle

66

Biceps Femoris action

Flexes the knee, and also rotates the tibia laterally; long head also extends the hip joint

67

Biceps Femoris innervation

common peroneal nerve

68

Semimembranosus origin

Superior lateral quadrant of the ischial tuberosity

69

Semimembranosus insertion

Posterior surface of the medial tibial condyle

70

Semimembranosus action

Extends the thigh, flexes the knee, and also rotates the tibia medially, especially when the knee is flexed

71

Semimembranosus innervatin

tibial nerve

72

Semitendinosus origin

From common tendon with long head of biceps femoris from superior medial quadrant of the posterior portion of the ischial tuberosity

73

Semitendinosus insertion

Superior aspect of medial portion of tibial shaft

74

Semitendinosus action

Extends the thigh and flexes the knee, and also rotates the tibia medially, especially when the knee is flexed

75

Semitendinous innervation

tibial nerve

76

Pes Anserinus

goose foot
saritorius, semitendonsous and gracilis attach