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Functional Anatomy I > Thigh/Buttock Muscles > Flashcards

Thigh/Buttock Muscles Flashcards

1
Q

quadratus lumborum - origin (DA)

A

posteromedial iliac crest, iliolumbar ligament

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2
Q

quadratus lumborum - insertion (PA)

A

12th rib along medial 1/2 of lower border, TPs of T12-L4

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3
Q

quadratus lumborum - innervation

A

ventral rami T12-L3

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4
Q

quadratus lumborum - actions

A

stabilizes 12th rib and lumbar spin, ipsilateral SB, bilateral extension, hikes hip

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5
Q

psoas major - origin (DA)

A

TPs, vertebral bodies and adjoining discs of T12-L5

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6
Q

psoas major - insertion (PA)

A

lesser trochanter

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7
Q

psoas major - innervation

A

ventral rami L1-L3(4)

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8
Q

psoas major - actions

A

hip flexion, hip external rotation, trunk ipsilateral sidebend, spinal flexion during sit ups, spinal stabilization

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9
Q

iliacus - origin (DA)

A

superior 2/3 of iliac fossa, anterior SI ligaments

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10
Q

iliacus - insertion (PA)

A

less trochanter of femur

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11
Q

iliacus - innervation

A

femoral nerve L2-L3

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12
Q

iliacus - actions

A

flexes hip, externally rotates the flexed hip

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13
Q

tensor fascia latae - origin (DA)

A

anterior iliac crest, lateral surface of ASIS, and a portion of the border of the notch below it

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14
Q

tensor fascia latae - insertion (PA)

A

iliotibial band and hence to the lateral tibial condyle at Gerdy’s tubercle of tibia

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15
Q

tensor fascia latae - innervation

A

superior gluteal nerve L4, 5, S1

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16
Q

tensor fascia latae - actions

A

extension and external rotation of the knee; flexion, abduction and internal rotation of the hip; dynamic stabilizer of the knee joint

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17
Q

sartorius - origin (DA)

A

ASIS

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18
Q

sartorius - insertion (PA)

A

proximal medial surface of tibia at pes anserine

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19
Q

sartorius - innervation

A

femoral nerve L2-3

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20
Q

sartorius - actions

A

flexion, external rotation and abduction of the hip; flexion and internal of the knee

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21
Q

rectus femoris - origin (PA)

A

straight head - AIIS; reflected head - groove on ilium superior to acetabulum, fibrous capsule of hip joint

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22
Q

rectus femoris - insertion (DA)

A

patella by quadriceps tendon, tibial tuberosity by patellar tendon (ligament)

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23
Q

rectus femoris - innervation

A

femoral nerve L2, 3, 4

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24
Q

rectus femoris - actions

A

knee extension and hip flexion

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25
Q

gracilis - origin (PA)

A

lower 1/2 of pubic body, lower aspect of inferior pubic ramus and adjoining ischial ramus

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26
Q

gracilis - insertion (DA)

A

proximal medial surface of tibail at the pes anserine

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27
Q

gracilis - innervation

A

obturator nerve L2-3

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28
Q

gracilis - actions

A

flexion, medial rotation of knee; adduction of hip

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29
Q

pectineus - origin (PA)

A

pectineal line on superior ramus of pubis

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30
Q

pectineus - insertion (DA)

A

pectineal line between the lesser trochanter and the linea aspera

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31
Q

pectineus - innervation

A

femoral nerve L2-3

32
Q

pectineus - actions

A

hip adduction and flexion

33
Q

adductor brevis - origin (PA)

A

inferior ramus of pubis

34
Q

adductor brevis - insertion (DA)

A

pectineal line and proximal 1/2 of medial lip of linea aspera

35
Q

adductor brevis - innervation

A

obturator nerve L2-3

36
Q

adductor brevis - actions

A

hip adduction

37
Q

adductor longus - origin (PA)

A

posterior gluteal line of ilium, posterior sacrum, sacrotuberus ligament

38
Q

adductor longus - insertion (DA)

A

gluteal tuberosity of femur and ITB

39
Q

adductor longus - innervation

A

inferior glueteal nerve (L5, S1, S2)

40
Q

adductor longus - actions

A

hip adduction and flexion

41
Q

adductor magnus - origin (PA)

A

inferior ramus of pubis, inferior ramus of ischium and ischial tuberosity

42
Q

adductor magnus - insertion (DA)

A

linea aspera, medial supracondylar line and adductor tubercle

43
Q

adductor magnus - innervation

A

obturator nerve, L2-L4

44
Q

adductor magnus - actions

A

hip adduction and extension

45
Q

gluteus maximus - origin (PA)

A

posterior gluteal line of ilium, posterior sacrum, sacrotuberus ligament

46
Q

gluteus maximus - insertion (DA)

A

gluteal tuberosity of femur and ITB

47
Q

gluteus maximus - innervation

A

inferior gluteal nerve (L5, S1, S2)

48
Q

gluteus maximus - actions

A

hip extension, abduction and external rotation; assists in stabilization of knee through action of ITB

49
Q

gluteus minimus - origin (PA)

A

lateral ilium deep to gluteus medius between anterior and inferior gluteal line

50
Q

gluteus minimus - insertion (DA)

A

anterolateral aspect of greater trochanter

51
Q

gluteus minimus - innervation

A

superior gluteal L4-S1

52
Q

gluteus minimus - actions

A

hip abduction and internal rotation

53
Q

gluteus medius - origin (PA)

A

lateral ilium between posterior and anterior gluteal lines

54
Q

gluteus medius - insertion (DA)

A

lateral aspect of greater trochanter

55
Q

gluteus medius - innervation

A

superior gluteal nerve, L4-S1

56
Q

gluteus medius - actions

A

all fibers - hip abduction
posterior fibers - external rotation
anterior fibers - internal rotation
single limb support - keeps pelvis level (trendelenburg sign)

57
Q

piriformis - origin (PA)

A

anterior surface of sacrum at level S2-S4

58
Q

piriformis - insertion (DA)

A

superior and medial aspect of greater trochanter

59
Q

piriformis - innervation

A

ventral rami L5, S1, S2

60
Q

piriformis - actions

A

hip external rotation, abduction of hip (when flexed)

61
Q

quadratus femoris - origin (PA)

A

lateral border of ischial tuberosity

62
Q

quadratus femoris - insertion (DA)

A

intertrochanteric crest and quadrate tubercle of femur

63
Q

quadratus femoris - innervation

A

nerve to quadratus muscle, L4-S1

64
Q

quadratus femoris - actions

A

hip external rotation

65
Q

biceps femoris - origin (PA)

A

long head - upper ischial tuberosity; short head - lateral lip of linea aspera inferior to gluteus maximus attachment, proximal 1/2 of lateral supracondylar line

66
Q

biceps femoris - insertion (DA)

A

fibular head, LCL of knee, lateral tibial condyle

67
Q

biceps femoris - innervation

A

long head - tibial division of sciatic L5, S1, S2; short head - common peroneal divison of sciatic L5, S1, S2

68
Q

biceps femoris - actions

A

knee flexion, hip extension, secondarily laterally rotates hip and knee

69
Q

semimembranosus - origin (PA)

A

superolateral aspect of ischial tuberosity

70
Q

semimembranosus - insertion (DA)

A

posterior aspect of medial tibial condylar

71
Q

semimembranosus - innervation

A

tibial division of sciatic nerve L5, S1, S2

72
Q

semimembranosus - actions

A

knee flexion, hip extension, secondarily medially rotates hip and knee

73
Q

semitendinosus - origin (PA)

A

inferomedial aspect of ischial tuberosity

74
Q

semitendinosus - insertion (DA)

A

medial aspect of proximal tibia at pes anserine

75
Q

semitendinosus - innervation

A

tibial division of sciatic nerve L5, S1, S2

76
Q

semitendinosus - actions

A

knee flexion, hip extension, secondarily medially rotates hip and knee

Functional Anatomy I (3 decks)

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