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EXAM 4 GROSS > LOWER LIMB MUSCLES > Flashcards

LOWER LIMB MUSCLES Flashcards

1
Q

Origin of Psoas Major (Superficial head & Deep head)

A

Superficial: T12-L4 & associated intervrtebral disks
Deep: L1-L5 vertebrae (T.P)

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2
Q

INSERTION of Psoas Major

A

Lesser troachanter

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3
Q

INNERVATION of Psoas Major

A

Direct branches of lumbar plexus (L2-L4)

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4
Q

ACTION of Iliopsoas

A

Hip joint: flexion & ext. rotation
lumbar spine: unilateral ipsilaterally bends trunk
bilaterally: contraction raises trunk from supine positon

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5
Q

Iliacus ORGIN

A

iliac fossa

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6
Q

Iliacus INSERTION

A

LESSER TROCHANTER

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7
Q

Iliacus INNERVATION

A

Femoral N (L2-L4)

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8
Q

Common Insertion of Iliopsoas

A

Lesser Trochanter

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9
Q

Gluteus maximus ORIGIN

A

sacrum (dorsal surface, lateral part)
ilium (gluteal surface, post. part)
thoracolumbar fascia
sacrotuberous ligament

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10
Q

Gluteus Maximus INSERTION

A

upper fibers: iliotibial tract

lower fibers: gluteal tuberosity

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11
Q

Gluteus Maximus INNERVATION

A

inf. gluteal N

L5-S2

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12
Q

Gluteus Maximus ACTION

A

entire muscle: extends & ext rotates hip in sagittal & coronalplanes
upper fibres: abduction
lower fibers: adduction

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13
Q

Gluteus Medius ORIGIN

A

ilium (gluteal surface below iliac crest btw ant. & post. gluteal line)

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14
Q

Gluteus Medius INSERTION

A

Greater Trochanter (lat. surface)

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15
Q

Gluteus Medius & Minimus INNERVATION

A

Sup. Gluteal N

L4-S1

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16
Q

Gluteus Medius & Minimus ACTION

A

entire muscle: abducts hip, stabilizes pelvis in coronal plane
ant. part: flexion & int. rotation
post part: ext. and ext rotation

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17
Q

Gluteus Minimus ORIGIN

A

ilium (gluteal surface below origin of gluteus medius

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18
Q

Gluteus Minimus INSERTION

A

Greater trochanter of femur (anterolateral surface)

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19
Q

Common insertion of gluteus medius and minimus

A

GREATER TROCHANTER

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20
Q

Tensor Fascia Latae ORIGIN

A

ASIS

anterior superior iliac spine

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21
Q

Tensor Fascia Latate INSERTION

A

Iliotibial tract

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22
Q

Tensor Fascia Latae INNERVATION

A

Sup. Gluteal N

L4-S1

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23
Q

Tensor Fascia Latae ACTION

A

tenses fascia lata

hip joint: abduction, flexion, and int. rotation

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24
Q

Piriformis ORIGIN

A

pelvic surfaces of sacrum

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25
Q

Piriformis INSERTION

A

apex of GREATER TROCHANTER of femur

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26
Q

Piriformis INNERVATION

A

direct branches from sacral plexus (S1-S2)

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27
Q

Piriformis ACTION

A

ext rotation, abduction & ext. of hip joint

stabilizes hip joint

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28
Q

Obturator Internus ORIGIN

A

inner surface of obturator membrane & its bony boundaries

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29
Q

Obturator Internus INSERTION

A

medial surface of GREATER TROCHANTER

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30
Q

Obturator Internus INNERVATION

A

direct branches from sacral plexus (L5,S1)

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31
Q

Obturartor Internus ACTION

A

ext rotation
adduction
extension of hip joint

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32
Q

Gemelli 2 muscle names

A

Gemellus superior

Gemellus inferior

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33
Q

Gemellus Superior ORIGIN

A

ischial spine

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34
Q

Gemellus Inferior ORIGIN

A

Ischial tuberosity

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35
Q

Gemelli INSERTION

A

jointly with obturator internus tendon (medial surface, greater trochanter)

36
Q

Gemelli INNERVATION

A

direct branches of sacral plexus (L5,S1)

37
Q

Gemelli ACTION

A

ext rotation, adduction, ext. of hip joint

38
Q

Quadratus Femoris ORIGIN

A

lateral border of ischial tuberosity

39
Q

Quadratus Femoris INSERTION

A

intertrochanteric crest of femur

40
Q

Quadratus Femoris INNERVATION

A

Direct branches of sacral plexus L5,S1

41
Q

Quadratus Femoris ACTION

A

ext. rotation and adduction of hip joint

42
Q

Pectineus ORIGIN

A

Pecten pubis

43
Q

Pectineus INSERTION

A

femur (pectineal line and proximal linea aspera)

44
Q

Pectineus INNERVATION

A

femoral N
obturator N
L2,L3

45
Q

Pectineus ACTION

A

hip joint: adduction, ext. rotation and slight flexion

stabilizes pelvis in coronal and sagittal plane

46
Q

Adductor longus ORIGIN

A

superior pubic ramus & ant. side of pubic symphysis

47
Q

Adductor Longus INSERTION

A

femur (linea aspera, medial lip in middle 1/3 of femur)

48
Q

Adductor longus INNERVATION

A

obturator N

L2-L4

49
Q

Adductor (longus & brevis) ACTION

A

hip joint: adduction & flexion (up to 70 degrees) ; extension (past 80 of flexion)
stabilizes pelvis in coronal and sagittal planes

50
Q

Adductor brevis ORGIN

A

inferior pubic ramus

51
Q

Adductor Brevis INSERTION

A

femur (linea aspera, medial lip in middle 1/3 of femur)

52
Q

Adductor Brevis INNERVATION

A

Obturator N

L2,L3

53
Q

Gracilis ORIGIN

A

inf. pubic ramus below pubic symphysis

54
Q

Gracilis INSERTION

A

tibia (medial border of tuberosity, along wit tendons of sartorius & semitendinosus)

55
Q

Gracilis INNERVATION

A

Obturator N

L2,L3

56
Q

Gracilis ACTION

A

hip joint: adduction & flexion

knee joint: flexion & int. rotation

57
Q

Medial Thigh Muscles : superficial layer Names (4)

A

Pectineus
adductor longus
adductor brevis
gracilis

58
Q

Common Origin of Medial thigh muscles : superficial layer

A

inf. pubic ramus

59
Q

Common insertion of Medial thigh muscles (except gracilis)

A

Linea aspera

60
Q

Common Innervation of medial thigh muscles : superficial layer

A

OBTURATOR N

L2,L3

61
Q

Obturator externus ORIGIN

A

outer surface of obturator membrane & bony boundaries

62
Q

Obturator Externus INSERTION

A

Trochanteric fossa of femur

63
Q

Obturator Externus INNERVATION

A

obturator nerve

L3,L4

64
Q

Obturator Externus ACTION

A

hip joint: adduction & ext. rotation

stabilizes pelvis in sagittal plane

65
Q

Adductor Magnus ORIGIN

A

inf. pubic ramus
ischial ramus
ischial tuberosity

66
Q

Adductor Magnus INSERTION

DEEP OR fleshy insertion

A

medial lip of linea aspera

67
Q

Adductor Magnus INSERTION

Superficial or Tendinous

A

adductor tubercle of femur

68
Q

Adductor Magnus DEEP PART INNERVATION

A

obturator N

L2-L4

69
Q

Adductor Magnus SUPERFICIAL PART INNERVATION

A

tibial N

L4

70
Q

Adductor Magnus ACTION

A

hip joint: adduction, ext & slight flexion

stabilizes pelvis in coronal & sagittal plane

71
Q

What 2 muscles consist of the iliopsoas?

A

Psoas Major

Iliacus

72
Q

Biceps Femoris ORIGIN

LONG HEAD

A

long head: ischial tuberosity, sacrotuberous lig (common head with semitendinosus)

73
Q

Biceps femoris ORIGIN

short head

A

lateral lip of linea aspear in middle 1/3 of femur

74
Q

Biceps Femoris INSERTION

A

head of fibula

75
Q

Biceps Femoris LONG HEAD INNERVATION

A

Tibial N

L5-S2

76
Q

Biceps Femoris LONG HEAD ACTION

A 
hip joint(long head): extends hip, stabilizes pelvis in sagittal plane
knee joint: flexion and ext. rotation
77
Q

Semimembranousus ORIGIN

A

ischial tuberosity

78
Q

Semimembranosus INSERTION

A

medial tibial condyle
oblique popliteal lig
popliteus fascia

79
Q

biceps femoris SHORT HEAD

INNERVATION

A

common fibular N

L5-S2

80
Q

Semimembranosus INNERVATION

A

Tibial N

L5-S2

81
Q

Semitendinosus ORIGIN

A

ischial tuberosity & sacrotuberous lig (common head with long head of biceps femoris)

82
Q

Semitendinosus INSERTION

A

medial to tibial tuberosity in pes anserinus (along with the tendon of gracilis & sartorius)

83
Q

Semitendinosus INNERVATION

A

Tibial N

L5-S2

84
Q

Biceps Femoris SHORT HEAD ACTION

A

KNEE JOINT: flexion and external rot.

85
Q

Semitendinosus & Semimembranosus ACION

A

hip joint: extends the hip, stabilizes pelvis in sagittal plane
knee joint: flexion and internal rotation

EXAM 4 GROSS (3 decks)

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