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Lower Limb Anatomy > Muscles of the Thigh > Flashcards

Muscles of the Thigh Flashcards

1
Q

Sartorius Origin

A

ASIS and notch below it

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2
Q

Sartorius insertion

A

Proximal part of medial surface of the body of the tibia

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3
Q

Sartorius innervation

A

Femoral nerve

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4
Q

Sartorius function

A

Flex, abduct, and laterally rotate hip

Flex knee

Medially rotate leg from flexed position

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5
Q

Quadriceps femoris insertion

A

Tibial tuberosity via patellar ligament

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6
Q

Quadriceps femoris innervation

A

Femoral nerve

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7
Q

Quadriceps femoris function

A

Extend knee

Rectus femoris is only quad to flex hip

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8
Q

Rectus femoris origin

A

Aponeurosis of straight (from ASIS) and reflected (from above acetabulum) tendons

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9
Q

Vastus lateralis origin

A

Lateral lip of linea aspera

Lateral lip of gluteal tuberosity

Anterior and inferior borders of the greater trochanter and proximal intertrochanteric line

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10
Q

Vastus medialis origin

A

Distal intertrochanteric line

Medial intermuscular septum

Tendons of adductor longus and magnus

Medial lip of linea aspera

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11
Q

Vastus intermedius origin

A

Proximal two-thirds of the anterior and lateral surfaces of the femur

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12
Q

Articularis genu origin

A

Anterior surface of the distal femur

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13
Q

Articularis genu insertion

A

Synovial membrane of the knee joint

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14
Q

Articularis genu innervation

A

Femoral nerve

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15
Q

Articularis genu function

A

draw synovium proximally

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16
Q

Gracilis origin

A

Inferior half of the pubic symphysis, pubic body, and the superior half of the pubic arch (inferior pubic ramus)

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17
Q

Gracilis insertion

A

Proximal part of the medial surface of the tibia in common with sartorius and semitendinosus

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18
Q

Gracilis nerve supply

A

Anterior division of the obturator nerve

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19
Q

Gracilis function

A

Adduct and medial rotate the hip

Flex knee

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20
Q

Pectineus origin

A

Pecten pubis, the bone anterior to the pecten pubis between the pubic tubercle and iliopectineal eminence

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21
Q

Pecineus insertion

A

Pectineal line

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22
Q

Pectineus innervation

A

Femoral nerve

Sometimes accessory obturator or obturator

23
Q

Pectineus function

A

Flex, adduct, and medially rotate hip

24
Q

Obturator externus origin

A

Portions of ischium and pubis surrounding medial margin of the obturator foramen and from obturator membrane

25
Q

Obturator externus insertion

A

trochanteric fossa of the femur

26
Q

Obturator externus innervation

A

Posterior division of the obturator nerve

27
Q

Obturator externus function

A

Adduct and laterally rotate hip

28
Q

Adductor longus origin

A

Front of the body of the pubis

29
Q

Adductor longus insertion

A

Medial lip of the linea aspera between vastus medialis and adductor magnus attachments

30
Q

Adductor longus function

A

Flex and adduct the hip

31
Q

Adductor longus innervation

A

Anterior brand of obturator nerve

32
Q

Adductor brevis origin

A

Pubic body and inferior pubic ramus

33
Q

Adductor brevis insertion

A

Proximal part of linea aspera

34
Q

Adductor brevis innervation

A

Obturator nerve (usually anterior division)(

35
Q

Adductor brevis function

A

Adduct and flex the hip

36
Q

Adductor magnus origin

A

Inferior pubic ramus

Ischial ramus

Ischial tuberosity

37
Q

Adductor magnus insertion

A

Gluteal tuberosity

Linea aspera

Medial supracondylar line

Adductor tubercle of the femur

38
Q

Adductor magnus innervation

A

Posterior division of the obturator nerve

Tibial portion of the sciatic nerve

39
Q

Adductor magnus functions

A

Adduct, flex, and extend hip

40
Q

Long head of biceps femoris origin

A

Posterior part of the ischial tuberosity in common with semitendinosus

Sacrotuberout ligament

41
Q

Short head of biceps femoris origin

A

Lateral lip of linea aspera between adductor magnus and vastus lateralis

42
Q

Biceps femoris insertion

A

Lateral side of the styloid process of the fibular head and lateral condyle of tibia

43
Q

Long head of biceps femoris innervation

A

Tibial portion of sciatic nerve

44
Q

Short head of biceps femoris innervation

A

Common fibular portion of the sciatic nerve

45
Q

Biceps femoris function

A

Flex and laterally rotate knee

Long head extends and laterally rotates hip

46
Q

Semitendinosus origin

A

Posterior ischial tuberosity in common for 8 cm with biceps femoris

47
Q

Semitendinosus insertion

A

Proximal part of the medial surface of tibia

48
Q

Semitendinosus innervation

A

Tibial portion of sciatic nerve

49
Q

Semitendinosus function

A

Flex and medially rotate knee

Extend hip

50
Q

Semimembranosus origin

A

Oblique line of ischial tuberosity above biceps femoris and semitendinosus

51
Q

Semimembranosus insertion

A

Groove on medial surface of medial condyle of tibia

Also continues to form the oblique popliteal ligament

52
Q

Semimembranosus innervation

A

Tibail portion of sciatic nerve

53
Q

Semimembranosus function

A

Flex and medially rotate knee

Extend thigh

Lower Limb Anatomy (15 decks)

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