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Anatomy term 2 > Thigh muscles attachments > Flashcards

Thigh muscles attachments Flashcards

1
Q

What are 3 compartments that make up the thigh muscles?

A
  1. anterior
  2. medial
  3. posterior
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2
Q

What are the muscles in the anterior compartment of the thigh? (7)

A
  1. psoas major
  2. iliacus
  3. vastus medialis
  4. vastus intermedius
  5. vastus lateralis
  6. rectus femoris
  7. sartorius
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3
Q

What is the origin of psoas major?

A
  1. posterior abdominal wall - lumbar transverse processes
  2. adjacent bodies from TXII to LV
  3. tendinous arches between TXII to LV
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4
Q

What is the insertion of psoas major?

A

lesser trochanter of the femur

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5
Q

What is the innervation of psoas major?

A

anterior rami (L1, L2, L3)

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6
Q

What is the function of psoas major?

A

Flexes thigh at the hip joint

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7
Q

What is the origin of iliacus?

A

posterior abdominal wall - iliac fossa

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8
Q

What is the insertion of iliacus?

A

lesser trochanter of femur

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9
Q

What is the innervation of iliacus?

A

femoral nerve

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10
Q

What is the function of iliacus?

A

flexes the thigh at hip joint

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11
Q

What is the origin of vastus medialis? (4)

A

femur

  1. medial part of the intertrochanteric line
  2. pectineal line
  3. medial lip of linea aspera
  4. medial supracondylar line
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12
Q

What is the insertion of vastus medialis? (2)

A
  1. quadriceps femoris tendon

2. medial border of patella

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13
Q

What is the innervation of vastus medialis?

A

femoral nerve

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14
Q

What is the function of vastus medialis?

A

extends the leg at the knee joint

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15
Q

What is the origin of vastus intermedius?

A

femur

  1. upper 2/3rds of anterior and lateral surfaces
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16
Q

What are the insertions for vastus intermedius? (3)

A
  1. quadriceps femoris tendon
  2. lateral margin of patella
  3. lateral condyle of tibia
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17
Q

What is the innervation of vastus intermedius?

A

femoral nerve

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18
Q

What is the function of vastus intermedius?

A

extends the leg at the knee joint

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19
Q

What is the origin of vastus lateralis? (4)

A

femur

  1. lateral part of intertrochanteric line
  2. margin of greater trochanter
  3. lateral margin of gluteal tuberosity
  4. lateral lip of the linea aspera
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20
Q

What are the insertion of vastus lateralis? (2)

A
  1. quadriceps femoris tendon

2. lateral margin of patella

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21
Q

What is the innervation to vastus lateralis?

A

femoral nerve

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22
Q

What is the function of vastus lateralis?

A

extends the leg at knee joint

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23
Q

What is the origin of rectus femoris?

A
  1. straight head originates from the AIIS

2. reflected head originates from the ilium just superior to the acetabulum

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24
Q

What is the insertion for rectus femoris?

A

quadriceps femoris tendon

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25
Q

What is the innervation for rectus femoris?

A

femoral nerve

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26
Q

What is the function of rectus femoris? (2)

A
  1. flexes the thigh at hip joint

2. extends the leg at the knee joint

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27
Q

What is the origin for sartorius?

A

ASIS

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28
Q

What is the insertion for sartorius?

A

medial surface of tibia - just inferomedial to the tibial tuberosity

29
Q

What is the innervation to sartorius?

A

femoral nerve

30
Q

What is the function for sartorius?

A
  1. flexed the thigh at the hip joint

2. flexes the leg at knee joint

31
Q

What muscles are involved in the medial compartment of the thigh? (6)

A
  1. gracilis
  2. pectineus
  3. adductor longus
  4. adductor brevis
  5. adductor magnus
  6. obturator externus
32
Q

What is the origin of gracilis muscle? (3)

A
  1. a line on the external surfaces of the body of the pubis
  2. the inferior pubic rams
  3. ramus of the ischium
33
Q

What is the insertion of gracilis?

A

medial surface of proximal shaft of tibia

34
Q

What is the innervation of gracilis?

A

obturator nerve

35
Q

What is the function of gracilis? (2)

A
  1. adducts thigh at hip joint

2. flexes leg at knee joint

36
Q

What is the origin of pectineus muscle? (2)

A
  1. pectineal line (pecten pubis)

2. adjacent bone of pelvis

37
Q

What is the insertion of pectineus?

A
  • oblique line extending from the base of the lesser trochanter to linea aspera
  • on posterior surface of proximal femur
38
Q

What is the innervation of pectineus?

A

femoral nerve

39
Q

What is the function of pectineus?

A

adducts and flexes thigh at hip joint

40
Q

What is the origin of adductor longus?

A
  1. external surface of body of pubis

- triangular depression inferior to pubic crest and lateral to pubic symphysis

41
Q

What is the insertion of adductor longus?

A

linea aspera

  • on middle 1/3 of shaft of femur
42
Q

What is the innervation of adductor longus?

A

Obturator nerve

43
Q

What is the function of adductor longus?

A
  1. adducts thigh at hip joint

2. medially rotates thigh at hip joint

44
Q

What is the origin for adductor brevis?

A
  1. external surface of body of pubis

2. external surface of inferior pubic ramus

45
Q

What is the insertion for adductor brevis?

A
  1. posterior surface of proximal femur

2. upper 1/3 of linea aspera

46
Q

What is the innervation of adductor brevis?

A

obturator nerve

47
Q

What is the function of adductor brevis?

A
  1. adducts thigh at hip joint

2. medially rotates thigh at hip joint

48
Q

What is the origin of adductor magnus?

A
  1. adductor part - ischiopubic ramus

2. hamstring part - ischial tuberosity

49
Q

What is the insertion of adductor magnus?

A

Adductor part

  1. posterior surface of proximal femur
  2. linea aspera
  3. medial supracondylar line

Hamstring part

  1. adductor tubercle
  2. supra condylar line
50
Q

What is the innervation of adductor magnus?

A

Adductor

obturator nerve

Hamstring

sciatic nerve - tibial nerve

51
Q

What is the function of adductor magnus

A
  1. adducts the thigh at hip joint

2. medially rotates thigh at hip joint

52
Q

What is the origin of obturator externus?

A
  1. external surface of obturator membrane

2. external surface of adjacent bone

53
Q

What is the insertion of obturator externus?

A

trochanteric fossa

54
Q

What is the innervation of obturator externus?

A

obturator nerve

55
Q

What is the function of obturator externus?

A

laterally rotates thigh at hip joint

56
Q

What muscles make up the posterior compartment of the thigh?

A
  1. biceps femoris
  2. semitendinosus
  3. semimembranosus
57
Q

What is the origin of biceps femoris? (2)

A

long head

  1. inferomedial part of the upper area of the ischial tuberosity

Short head

  1. lateral lip of linea aspera
58
Q

What is the insertion of biceps femoris?

A
  1. head of fibula
59
Q

What is the innervation of biceps femoris?

A

sciatic nerve

60
Q

What is the function of biceps femoris? (4)

A
  1. flexes leg at knee joint
  2. extends thigh at hip joint
  3. laterally rotates leg at knee joint
  4. laterally rotates thigh at hip joint
61
Q

What is the origin of semitendinosus?

A

inferomedial part of the upper area of the ischial tuberosity

62
Q

What is the insertion of semitendinosus?

A

medial surface of proximal tibia

63
Q

What innervation of semitendinosus?

A

sciatic nerve

64
Q

What is the function of semitendinosus? (4)

A
  1. flexes leg at knee joint
  2. extends thigh at hip joint
  3. medially rotates thigh at hip joint
  4. medially rotates leg at knee joint
65
Q

What is the origin of semimembranosus?

A

superolateral impression on the ischial tuberosity

66
Q

What is the insertion of semimembranosus?

A
  1. groove and adjacent bone on medial and posterior surface of medial tibial condyle
67
Q

What is the innervation of semimembranosus?

A

sciatic nerve

68
Q

What is function of semimembranosus? (4)

A
  1. flexes leg at knee joint
  2. extends thigh at hip joint
  3. medially rotates thigh at hip joint
  4. medially rotates leg at knee joint

Anatomy term 2 (25 decks)

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