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Clinical Anatomy 1 - Spine, Deep Back, and Lower Extremity > Thigh Muscles (Anterior Femoral, Medial Femoral, Posterior Femoral) > Flashcards

Thigh Muscles (Anterior Femoral, Medial Femoral, Posterior Femoral) Flashcards

1
Q

Iliacus attachment

A

FROM:
*iliac fossa
*iliac crest
*sacral ala
*sacroiliac ligaments

TO
*lesser trochanter of femur

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2
Q

Iliacus action

A

Flexes and stabilizes hip joint

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3
Q

Iliacus innervation

A

Femoral nerve (L2-4)

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4
Q

Psoas major attachment

A

FROM:
*anterior transverse processes
*vertebral bodies & discs (T12-L5)

TO:
*lesser trochanter of femur

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5
Q

Psoas major action

A

Flexes and stabilizes hip joint

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6
Q

Psoas major innervation

A

Ventral rami L1-4 (from lumbar plexus)

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7
Q

Rectus femoris attachment

A

FROM:
*anterior inferior iliac spine
*groove superior to the acetabulum

TO:
*base of the patella

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8
Q

Rectus femoris action

A

Flexes hip and extends knee

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9
Q

Rectus femoris innervation

A

Femoral nerve (L2-4)

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10
Q

Sartorius attachment

A

FROM:
*anterior superior iliac spine

TO:
*medial aspect of the proximal tibia

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11
Q

Sartorius action

A

*flexes, abducts & laterally rotates hip
*flexes & assists medial rotation of
the knee

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12
Q

Sartorius innervation

A

Femoral nerve (L2-3)

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13
Q

Tensor fascia latae attachment

A

FROM:
*anterior superior iliac spine
*external lip iliac crest

TO:
*iliotibial tract

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14
Q

Tensor fascia latae action

A

abducts, flexes & medially rotates hip, and assists in maintaining knee extension

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15
Q

Tensor fascia latae innervation

A

Superior gluteal nerve (L4-S1)

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16
Q

Vastus intermedius attachment

A

FROM:*
anterior aspect of the proximal 2/3rds of the femoral shaft

TO:
*the lateral border of the patella

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17
Q

Vastus intermedius action

A

extends knee

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18
Q

Vastus intermedius innervation

A

femoral nerve (L2-4)

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19
Q

Vastus lateralis attachment

A

FROM:
*intertrochanteric line
*greater trochanter
*gluteal tuberosity
*linea aspera

TO:
*base & lateral border of the patella

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20
Q

Vastus lateralis action

A

extends knee

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21
Q

Vastus lateralis innervation

A

femoral nerve (L2-4)

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22
Q

Vastus medialis attachment

A

FROM:
*intertrochanteric line
*spiral line
*linea aspera
*medial supracondylar line

TO:
*base & medial border of the patella

23
Q

Vastus medialis action

A

extends leg

24
Q

Vastus medialis innervation

A

Femoral nerve (L2-4)

25
Q

Articularis genu attachment

A

FROM:
*distal anterior shaft of femur

TO:
*proximal portion of synovial
membrane of knee joint

26
Q

Articularis genu action

A

Pulls articular capsule proximally

27
Q

Articularis genu innervation

A

Femoral nerve (L2-4)

28
Q

Adductor brevis attachment

A

FROM:
*inferior pubic ramus

TO:
*distal 2/3 pectineal line
*medial lip linea aspera

29
Q

Adductor brevis action

A

Adducts and flexes hip

30
Q

Adductor brevis innervation

A

Obturator nerve (L2-4)

31
Q

Adductor longus attachment

A

FROM:
*pubic crest

TO:
*medial lip linea aspera

32
Q

Adductor longus action

A

Adducts, medially rotates, and flexes hip

33
Q

Adductor longus innervation

A

Obturator nerve (L2-4)

34
Q

Adductor magnus attachment

A

FROM:
*inferior pubic ramus
*ischial ramus & tuberosity

TO:
*gluteal tuberosity and linea aspera (adductor part)
*medial supracondylar ridge & adductor tubercle of the femur (hamstring part)

35
Q

Adductor magnus action

A

adducts, flexes (adductor part) & extends (hamstring part) hip

36
Q

Adductor magnus innervation

A

*obturator nerve (adductor part, L2-4)
*tibial division of the sciatic nerve (hamstring part, L4-S1)

37
Q

Gracilis attachment

A

FROM:
*body of the pubis
*inferior pubic ramus

TO:
*medial surface of tibia
*distal to condyle, proximal to insertion of semitendinosus, lateral to insertion of sartorius

38
Q

Gracilis action

A

flexes & medially rotates the knee, and adducts hip

39
Q

Gracilis innervation

A

Obturator nerve (L2-4)

40
Q

Pectineus attachment

A

FROM:
*superior pubic ramus

TO:
*femur between the lesser trochanter &
linea aspera (pectineal line)

41
Q

Pectineus action

A

Adducts, flexes hip

42
Q

Pectineus innervation

A

Femoral and obturator nerve (L2-4)

43
Q

Biceps femoris attachment

A

FROM:
*ischial tuberosity & sacrotuberous lig. (long head)
*lateral lip of linea aspera & lateral supracondylar line (short head)

TO:
*lateral side of fibular head

44
Q

Biceps femoris action

A

flexes & laterally rotates the knee (both heads) & extends hip (long head only)

45
Q

Biceps femoris innervation

A

*tibial division of sciatic (long head; L5-S3)
*fibular division of the sciatic nerve (short head; L5-S2)

46
Q

Semimembranosus attachment

A

FROM:
*ischial tuberosity

TO:
*posterior aspect of the medial tibial condyle

47
Q

Semimembranosus innervation

A

Tibial division of the sciatic nerve (L4-S2)

48
Q

Semimembranosus action

A

extends hip, and flexes & medially rotates knee

49
Q

Semitendinosus attachment

A

FROM:
*ischial tuberosity

TO:
*proximal, medial tibia

50
Q

Semitendinosus action

A

extends hip, and flexes & medially rotates knee

51
Q

Semitendinosus innervation

A

Tibial division of the sciatic nerve (L4-S2)

52
Q

Obturator externus - Attachments

A

FROM:
*rami of the pubis and ischium
*external surface obturator membrane

TO:
*trochanteric fossa

53
Q

Obturator externus - Actions

A

laterally rotates hip

54
Q

Obturator externus - Innervation

A

Obturator nerve (L3-4)

Clinical Anatomy 1 - Spine, Deep Back, and Lower Extremity (11 decks)

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