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Anatomy term 2 > Thigh muscles attachments > Flashcards

Thigh muscles attachments Flashcards

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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
What is the innervation for rectus femoris?
femoral nerve
26
What is the function of rectus femoris? (2)
1. flexes the thigh at hip joint | 2. extends the leg at the knee joint
27
What is the origin for sartorius?
ASIS
28
What is the insertion for sartorius?
medial surface of tibia - just inferomedial to the tibial tuberosity
29
What is the innervation to sartorius?
femoral nerve
30
What is the function for sartorius?
1. flexed the thigh at the hip joint | 2. flexes the leg at knee joint
31
What muscles are involved in the medial compartment of the thigh? (6)
1. gracilis 2. pectineus 3. adductor longus 4. adductor brevis 5. adductor magnus 6. obturator externus
32
What is the origin of gracilis muscle? (3)
1. a line on the external surfaces of the body of the pubis 2. the inferior pubic rams 3. ramus of the ischium
33
What is the insertion of gracilis?
medial surface of proximal shaft of tibia
34
What is the innervation of gracilis?
obturator nerve
35
What is the function of gracilis? (2)
1. adducts thigh at hip joint | 2. flexes leg at knee joint
36
What is the origin of pectineus muscle? (2)
1. pectineal line (pecten pubis) | 2. adjacent bone of pelvis
37
What is the insertion of pectineus?
- oblique line extending from the base of the lesser trochanter to linea aspera - on posterior surface of proximal femur
38
What is the innervation of pectineus?
femoral nerve
39
What is the function of pectineus?
adducts and flexes thigh at hip joint
40
What is the origin of adductor longus?
1. external surface of body of pubis | - triangular depression inferior to pubic crest and lateral to pubic symphysis
41
What is the insertion of adductor longus?
linea aspera - on middle 1/3 of shaft of femur
42
What is the innervation of adductor longus?
Obturator nerve
43
What is the function of adductor longus?
1. adducts thigh at hip joint | 2. medially rotates thigh at hip joint
44
What is the origin for adductor brevis?
1. external surface of body of pubis | 2. external surface of inferior pubic ramus
45
What is the insertion for adductor brevis?
1. posterior surface of proximal femur | 2. upper 1/3 of linea aspera
46
What is the innervation of adductor brevis?
obturator nerve
47
What is the function of adductor brevis?
1. adducts thigh at hip joint | 2. medially rotates thigh at hip joint
48
What is the origin of adductor magnus?
1. adductor part - ischiopubic ramus | 2. hamstring part - ischial tuberosity
49
What is the insertion of adductor magnus?
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
What is the innervation of adductor magnus?
Adductor obturator nerve Hamstring sciatic nerve - tibial nerve
51
What is the function of adductor magnus
1. adducts the thigh at hip joint | 2. medially rotates thigh at hip joint
52
What is the origin of obturator externus?
1. external surface of obturator membrane | 2. external surface of adjacent bone
53
What is the insertion of obturator externus?
trochanteric fossa
54
What is the innervation of obturator externus?
obturator nerve
55
What is the function of obturator externus?
laterally rotates thigh at hip joint
56
What muscles make up the posterior compartment of the thigh?
1. biceps femoris 2. semitendinosus 3. semimembranosus
57
What is the origin of biceps femoris? (2)
long head 1. inferomedial part of the upper area of the ischial tuberosity Short head 2. lateral lip of linea aspera
58
What is the insertion of biceps femoris?
1. head of fibula
59
What is the innervation of biceps femoris?
sciatic nerve
60
What is the function of biceps femoris? (4)
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
What is the origin of semitendinosus?
inferomedial part of the upper area of the ischial tuberosity
62
What is the insertion of semitendinosus?
medial surface of proximal tibia
63
What innervation of semitendinosus?
sciatic nerve
64
What is the function of semitendinosus? (4)
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
What is the origin of semimembranosus?
superolateral impression on the ischial tuberosity
66
What is the insertion of semimembranosus?
1. groove and adjacent bone on medial and posterior surface of medial tibial condyle
67
What is the innervation of semimembranosus?
sciatic nerve
68
What is function of semimembranosus? (4)
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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