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ANAT101 > Lower Limb Muscle Attachments And Actions > Flashcards

Lower Limb Muscle Attachments And Actions Flashcards

1
Q

What is the attachment of gluteus medius?

A

o- gluteal surface of the ilium between the posterior and anterior gluteal lines, ilia crest

I- greater trochanter of femur

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2
Q

What are the actions of the gluteus medius?

A

Hip abduction, internal rotation

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3
Q

What is the attachment of gluteus maximus?

A

O: gluteal surface of ilium posterior to posterior gluteal line, posterior iliac crest, posterior sacrum, sacrotuberous ligament

I: gluteal tuberosity of femur and IT tract

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4
Q

What are the actions of the gluteus Maximus?

A

Hip extension, abduction and lateral rotation

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5
Q

What are the actions of gluteus minimus?

A

Hip abduction and internal rotation

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6
Q

What are the attachments of gluteus minimus?

A

o- gluteal surface of ilium between anterior and inferior gluteal lines

i- greater trochanter of the femur

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7
Q

What are the attachments of tensor fascia lata?

A

O: anterior part of iliac crest and adjacent gluteal surface, anterior superior iliac spine

I: lateral condyle of the tibia via the ITB

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8
Q

What are the actions of TFL?

A

Hip flexion, abduction and internal rotation
Knee extension

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9
Q

What are the attachments of piriformis?

A

O: anterior aspects of the 2nd to 4th sacral segments, sacrotuberous ligament

I: medial side of the greater trochanter of the femur

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10
Q

What are the actions of piriformis?

A

Hip external rotation

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11
Q

What are the attachments of superior gemellus?

A

O: gluteal surface of the ischial spine

I: medial surface of the greater trochanter via the the tendon on obturator internus

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12
Q

What are the attachments of inferior gemellus?

A

O: upper part of the ischial tuberosity

I: medial surface of the greater trochanter via the tendon of obturator internus

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13
Q

What are the attachments of quadratus femoris?

A

O: ischial tuberosity

I: quadrate tubercle of the femur

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14
Q

What are the attachments of obturator externus?

A

O: outer surface of the obturator membrane and adjacent bone

I: trochanteric fossa of the femur

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15
Q

What are the attachments of obturator internus?

A

O: internal surface of the obturator membrane and adjacent bone

I: medial surface of the greater trochanter of the femur

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16
Q

What are the actions of superior gemellus?

A

Hip external rotation

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17
Q

What are the actions of inferior gemellus?

A

Hip external rotation

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18
Q

What are the actions of obturator externus?

A

Hip external rotation

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19
Q

What are the actions of obturator internus?

A

Hip external rotation

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20
Q

What are the actions of quadratus femoris?

A

Hip external rotation

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21
Q

What are the actions of gracilis?

A

Knee flexion, internal rotation
Hip adduction

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22
Q

What are the attachments of gracilis?

A

O: anterior body of the pubic, inferior ramus of the pubis

I: medial surface of the upper part of the shaft of the tibia

23
Q

What are the attachments of pectineus?

A

O: superior ramus of the pubic

I: pectineal line of the femur

24
Q

What are the actions of pectineus?

A

Hip flexion, adduction

25
Q

What are the actions of adductor magnus?

A

Hip adduction

26
Q

What are the actions of adductor longus?

A

Hip adduction

27
Q

What are the actions of adductor brevis?

A

Hip adduction

28
Q

What are the attachments of adductor longus?

A

O: anterior aspect of the body of the pubis (between the pubic crest and the symphysis)

I: middle two quarters of the medial lip on the linea aspera

29
Q

What are the attachments of adductor magnus?

A

O: ischiopubic ramus extending to the inferior part of the ischial tuberosity

I: upper part of the medial lip of the linea aspera of the femur to the medial supracondylar ridge of the femur, adductor tubercle of the femur

30
Q

What are the attachments of adductor brevis?

A

O: anterolateral body of the pubis, inferior ramus of the pubis

I: proximal half of the medial lip of the linea aspera

31
Q

What are the attachments of sartorius?

A

O: anterior superior iliac spine

I: medial surface of the upper part of the shaft of the tibia, medial collateral ligament of the knee

32
Q

What are the actions of sartorius?

A

Hip flexion
Knee flexion, internal rotation

33
Q

What are the attachments of rectus femoris?

A

O: anterior inferior iliac spine, ilium just superior to the acetabulum

I: tibial tuberosity via the patellar ligament

34
Q

What are the actions of rectus femoris?

A

Hip flexion
Knee extension

35
Q

What are the actions of vastus lateralis?

A

Knee extension

36
Q

What are the attachments of vastus lateralis?

A

O: upper lateral part of the intertrochanteric line, lower border of the greater trochanter, lateral side of the gluteal tuberosity, upper half of the lateral lip of the linea aspera

I: tibial tuberosity via the tendon of rectus femoris and the patellar ligament, blends with the ITB

37
Q

What are the attachments of vastus medialis?

A

O: lower medial part of the intertrochanteric line, medial aspect of the proximal femoral shaft, medial lip of the linea aspera, upper 2/3s of the medial supracondylar line

I: tibial tuberosity via the tendon of rectus femoris and the patellar ligament, medial condyle of the tibia

38
Q

What are the actions of vastus medialis?

A

Knee extension

39
Q

What are the attachments of vastus intermedius?

A

O: upper 2/3s of the anterior and lateral surfaces of the femur

I: tibial tuberosity via the tendon of rectus femoris and the patellar ligament

40
Q

What are the actions of vastus intermedius?

A

Knee extension

41
Q

What are the attachments of biceps femoris?

A

O: medial part of the ischial tuberosity and sacrotuberous ligament (long head), lower half lateral lip of the linea aspera extending to the upper part of the lateral supracondylar line of the femur (short head)

I: head of the fibula

42
Q

What are the actions of biceps femoris?

A

Hip extension
Knee flexion, external rotation

43
Q

What are the attachments of semitendinosus?

A

O: medial aspect of the ischial tuberosity

I: medial surface of the upper part of the shaft of the tibia

44
Q

What are the attachments of semimembranosus?

A

O: lateral aspect of the ischial tuberosity

I: posteromedial surface of the medial tibial condyle

45
Q

What are the actions of semitendinosus?

A

Hip extension
Knee flexion, internal rotation

46
Q

What are the actions of semimembranosus?

A

Hip extension
Knee flexion, internal rotation

47
Q

What are the actions of psoas major?

A

Hip flexion

48
Q

What are the actions of iliacus?

A

Hip flexion

49
Q

What are the attachments of psoas major?

A

O: bodies and adjacent transverse processes L1-L5

I: lesser trochanter of femur

50
Q

What are the attachments of iliacus?

A

O: upper and posterior two thirds of the iliac fossa

I: lesser trochanter of femur

51
Q

What are the attachments of gastrocnemius?

A

O: posterior aspect of the medial and lateral femoral condyles, capsule of the knee joint

I: posterior calcaneus via tendocalcenus

52
Q

What are the actions of gastrocnemius?

A

Knee flexion
Ankle plantar flexion

53
Q

What are the actions of popliteus?

A

Knee flexion, internal rotation

54
Q

What are the attachments of popliteus?

A

O: lateral condyle of the femur, lateral meniscus of the knee

I: posterior tibia above the soleal line

ANAT101 (1 decks)

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