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Gross Anatomy Muscles > Anterior and Medial Thigh Muscles > Flashcards

Anterior and Medial Thigh Muscles Flashcards

1
Q

Psoas Major

Origin

A

-Sides of T12-L5 vertebrae and intervertebral discs;

transverse processes of all lumbar vertebrae

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2
Q

Psoas Major

Insertion

A

-Lesser trochanter of femur

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3
Q

Psoas Major

Innervation

A

-Anterior rami of lumbar nerves (L1, L2, L3)

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4
Q

Psoas Major

Action

A
  • Stabilizes hip joint

- Flexes hip

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5
Q

Psoas Minor

Origin

A

-Sides of T12-L1 vertebrae and intervertebral discs

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6
Q

Psoas Minor

Insertion

A

-Pectineal line and iliopectineal eminence of

pelvic bone

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7
Q

Psoas Minor

Innervation

A

-Anterior rami of lumbar nerves (L1, L2)

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8
Q

Psoas Minor

Action

A

-Weakly flexes lumbar spine

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9
Q

Iliacus

Origin

A
  • Iliac crest; iliac fossa;
  • ala of the sacrum;
  • anterior sacroiliac ligaments
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10
Q

Iliacus

Insertion

A

-Tendon of psoas major; lesser trochanter and femur distal to it

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11
Q

Iliacus

Innervation

A

-Femoral nerve (L2, L3)

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12
Q

Iliacus

Action

A
  • Flexes hip

- Stabilizes hip joint

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13
Q

Sartorius

Origin

A

-Anterior superior iliac spine (ASIS)

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14
Q

Sartorius

Insertion

A

-Superior and medial surface of tibia (pes anserine)

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15
Q

Sartorius

Innervation

A

-Femoral nerve (L2, L3)

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16
Q

Sartorius

Action

A
  • Flexes, abducts, and laterally rotates hip
  • Flexes knee joint
  • Medially rotates tibia when knee flexed
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17
Q

Rectus Femoris

Origin

A

-Anterior inferior iliac spine (AIIS) and ilium superior

to acetabulum

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18
Q

Rectus Femoris

Insertion

A
  • To patella via quadriceps tendons

- indirectly via patellar ligament to tibial tuberosity

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19
Q

Rectus Femoris

Innervation

A

-Femoral nerve (L2, L3, L4)

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20
Q

Rectus Femoris

Action

A
  • Extends knee joint
  • Steadies hip joint
  • Helps iliopsoas flex hip
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21
Q

Vastus Lateralis

Origin

A

-Greater trochanter and lateral lip of linea aspera of

femur

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22
Q

Vastus Lateralis

Insertion

A

-To patella via quadriceps
tendons
-indirectly via patellar ligament to tibialtuberosity

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23
Q

Vastus Lateralis

Innervation

A

-Femoral nerve (L2, L3, L4)

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24
Q

Vastus Lateralis

Action

A

-Extends knee joint

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25
Q

Vastus Medialis

Origin

A

-Intertrochanteric line and the medial lip of linea aspera of femur

26
Q

Vastus Medialis

Insertion

A
  • To patella via quadriceps tendons

- indirectly via patellar ligament to tibial tuberosity

27
Q

Vastus Medialis

Innervation

A

-Femoral nerve (L2, L3, L4)

28
Q

Vastus Medialis

Action

A

-Extends knee joint

29
Q

Vastus Intermedius

Origin

A

-Anterior and lateral surfaces of shaft of femur

30
Q

Vastus Intermedius

Insertion

A
  • To patella via quadriceps tendons

- indirectly via patellar ligament to tibial tuberosity

31
Q

Vastus Intermedius

Innervaiton

A

-Femoral nerve (L2, L3, L4)

32
Q

Vastus Intermedius

Action

A

-Extends knee joint

33
Q

Pectineus

Origin

A

-Superior ramus of pubis

34
Q

Pectineus

Insertion

A

-Pectineal line of femur

35
Q

Pectineus

Innervation

A
  • Femoral nerve (L2, L3)

- may receive branch fromthe obturator nerve

36
Q

Pectineus

Action

A

-Adducts, flexes, medially rotates hip joint

37
Q

Tensor Fascia Latae

Origin

A

-Anterior superior iliac spine (ASIS); anterior part

of iliac crest

38
Q

Tensor Fascia Latae

Insertion

A

-Iliotibial tract, which attaches to lateral condyle

of tibia

39
Q

Tensor Fascia Latae

Innervation

A

-Superior gluteal nerve (L5, S1)

40
Q

Tensor Fascia Latae

Action

A

-Abducts and medially rotates hip joint

41
Q

Adductor Longus

Origin

A

-Body of pubis inferior to pubic crest

42
Q

Adductor Longus

Insertion

A

-Middle third of linea aspera of femur

43
Q

Adductor Longus

Innervation

A

-Obturator nerve, branch of the anterior division (L2,

L3, L4)

44
Q

Adductor Longus

Action

A

-Adducts hip joint

45
Q

Adductor Brevis

Origin

A

-Body and inferior ramus of pubis

46
Q

Adductor Brevis

Insertion

A

-Pectineal line and proximal part of linea aspera

47
Q

Adductor Brevis

Innervation

A

-Obturator nerve, branch of the anterior division (L2,

L3, L4)

48
Q

Adductor Brevis

Action

A

-Adducts and weakly flexes hip joint

49
Q

Adductor Mangus

Origin

A

-Adductor part: inferior ramus of pubis and ramus
of ishium
-Hamstrings part: ischialtuberosity

50
Q

Adductor Mangus

Insertion

A

-Adductor part: gluteal tuberosity, linea aspera,
and medial supracondylar line of femur
-Hamstring part: adductor tubercle of femur

51
Q

Adductor Mangus

Innervation

A

-Adductor part: obturator nerve (L2, L3, L4),
branches of posterior division
-Hamstring part: tibial division of sciatic nerve (L4)

52
Q

Adductor Mangus

Action

A
  • Adducts hip joint
  • Adductor part flexes hip
  • Hamstring part extends hip
53
Q

Gracilis

Origin

A

-Body and inferior ramus of pubis

54
Q

Gracilis

Insertion

A

-Superior and medial surface of tibia (pes anserine)

55
Q

Gracilis

Innervation

A

-Obturator nerve (L2, L3)

56
Q

Gracilis

Action

A
  • Adducts hip joint
  • Flexes knee joint
  • Medially rotates tibia
57
Q

Obturator Externus

Origin

A

-Anterior surface of obturator membrane and

surrounding bones

58
Q

Obturator Externus

Insertion

A

-Trochanteric fossa of femur

59
Q

Obturator Externus

Innervation

A

-Obturator nerve (L3, L4)

60
Q

Obturator Externus

Action

A
  • Laterally rotates hip

- Steadies head of femur in acetabulum

Gross Anatomy Muscles (12 decks)

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