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Flashcards in Thigh Deck (50):
1

What divides the muscles of the thigh into anterior, posterior and medial compartments?

Fascia lata

2

Which muscles make up the hamstrings?

Semimembranosus, semitendinosus, long head of biceps femoris, hamstring part of adductor magnus

3

What is the common origin of hamstring muscles?

Ischial tuberosity

4

What is the insertion of semimembranosus?

Medial condyle of tibia

5

What is the insertion of semitendinosus?

Medial surface of tibia

6

What are the actions of semimembranosus and semitendinosus?

Extension and medial rotation at hip, flexion at knee

7

What nerve innervates semimembranosus, semitendinosus and long head of biceps femoris?

Sciatic nerve

8

What is the insertion of biceps femoris?

Lateral side of head of fibula

9

What is the origin of short head of biceps femoris?

Linea aspera and lateral supracondylar line of femur

10

What are the actions of long head of biceps femoris?

Extension and lateral rotation at hip, flexion at knee

11

What are the actions of short head of biceps femoris?

Lateral rotation at hip, flexion at knee

12

What nerve innervates short head of biceps femoris?

Common peroneal/fibular nerve

13

What are the attachments of the adductor part of adductor magnus?

Origin - inferior ischiopubic ramus
Insertion - linea aspera

14

What are the actions of adductor part of adductor magnus?

Adduction and flexion of thigh

15

What nerve innervates adductor part of adductor magnus?

Obturator nerve (L2-L4)

16

What are the attachments of the hamstring part of adductor magnus?

Origin - ischial tuberosity
Insertion - adductor tubercle on distal, medial femur

17

What are the actions of the hamstring part of adductor magnus?

Adduction and extension of the thigh

18

What nerve supplies the hamstring part of adductor magnus?

Tibial nerve (L4-S3)

19

Which muscles are in the anterior compartment of the thigh?

Sartorius, pectineus, iliopsoas, quadriceps femoris

20

What muscles make up quadriceps femoris?

Rectus femoris, vastus lateralis, vastus medialis, vastus intermedialis

21

What are the attachments of sartorius?

Origin - anterior superior iliac spine
Insertion - superiomedial surface of tibia

22

What are the actions of sartorius?

Flexion, abduction and lateral rotation of hip, flexion of knee

23

What are the attachments of pectineus?

Origin - pectineal line (anterior surface of pelvis)
Insertion - pectineal line (posterior femur, under lesser trochanter)

24

What are the actions of pectineus?

Adduction and flexion at hip

25

What nerves supply pectineus?

Femoral and branch from obturator nerve

26

What are the attachments of iliopsoas muscle?

Origin
- Psoas major - lumbar vertebrae
- Iliacus - iliac fossa
Insertion - lesser trochanter of femur

27

What are the actions of iliopsoas?

Flexion and lateral rotation at hip

28

What nerves supply psoas major?

Anterior rami of L1-L3

29

What are the attachments of rectus femoris?

Origin - ilium (superior to acetabulum)
Insertion - patella via quadriceps femoris tendon

30

What are the actions of rectus femoris?

Flexion at hip, extension at knee

31

What are the attachments of vastus lateralis?

Origin - greater trochanter, intertrochanteric line and linea aspera
Insertion - patella via quadriceps tendon, tibial tuberosity via patellar ligament

32

What are the attachments of vastus medialis?

Origin - medial side of femur
Insertion - patella via quadriceps tendon

33

What are the attachments of vastus intermedialis?

Origin - anterolateral femur
Insertion - patella via quadriceps tendon

34

What is the common attachment of the quadriceps muscles?

Patella via quadriceps tendon

35

What is the action of all the vastus muscles?

Extension at knee

36

What nerve supplies majority of muscles in anterior compartment of thigh?

Femoral nerve
(sartorius, pectineus, iliacus, quadriceps femoris)

37

Which muscles make up the medial compartment of the thigh?

Adductor longus, adductor brevis, adductor magnus, gracilis, obturator externus

38

What are the attachments of adductor longus?

Origin - pubis
Insertion - linea aspera

39

What are the actions of adductor longus?

Adduction and medial rotation at hip

40

What are the attachments of adductor brevis?

Origin - body of pubis and inferior pubic rami
Insertion - linea aspera (proximal to adductor longus)

41

What is the action of adductor brevis?

Adduction at hip

42

Generally what is the function of the muscles of the medial compartment of the thigh?

Adduction at hip

43

Which muscle in medial compartment doesn't adduct at the hip?

Obturator externus

44

What are the attachments of gracilis?

Origin - body of pubis and inferior pubic rami
Insertion - medial surface of tibia (between sartorius and semitendinosus tendons)

45

What are the actions of gracilis?

Adduction at hip, flexion at knee

46

What are the attachments of obturator externus?

Origin - membrane of obturator foramen and adjacent bone
Insertion - trochanteric fossa

47

What is the action of obturator externus?

Lateral rotation at hip

48

What nerve supplies majority of muscles in medial compartment of thigh?

Obturator nerve (L2-L4)
Apart from hamstring part of adductor magnus

49

Which muscles are responsible for flexion of the knee?

Semimembranosus, semitendinosus, biceps femoris, gastrocnemius, plantaris, sartorius, gracilis

50

Which muscles are responsible for extension of the knee?

Rectus femoris, vastus lateralis, medialis and intermedialis