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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
Piriformis INSERTION
apex of GREATER TROCHANTER of femur
26
Piriformis INNERVATION
direct branches from sacral plexus (S1-S2)
27
Piriformis ACTION
ext rotation, abduction & ext. of hip joint | stabilizes hip joint
28
Obturator Internus ORIGIN
inner surface of obturator membrane & its bony boundaries
29
Obturator Internus INSERTION
medial surface of GREATER TROCHANTER
30
Obturator Internus INNERVATION
direct branches from sacral plexus (L5,S1)
31
Obturartor Internus ACTION
ext rotation adduction extension of hip joint
32
Gemelli 2 muscle names
Gemellus superior | Gemellus inferior
33
Gemellus Superior ORIGIN
ischial spine
34
Gemellus Inferior ORIGIN
Ischial tuberosity
35
Gemelli INSERTION
jointly with obturator internus tendon (medial surface, greater trochanter)
36
Gemelli INNERVATION
direct branches of sacral plexus (L5,S1)
37
Gemelli ACTION
ext rotation, adduction, ext. of hip joint
38
Quadratus Femoris ORIGIN
lateral border of ischial tuberosity
39
Quadratus Femoris INSERTION
intertrochanteric crest of femur
40
Quadratus Femoris INNERVATION
Direct branches of sacral plexus L5,S1
41
Quadratus Femoris ACTION
ext. rotation and adduction of hip joint
42
Pectineus ORIGIN
Pecten pubis
43
Pectineus INSERTION
femur (pectineal line and proximal linea aspera)
44
Pectineus INNERVATION
femoral N obturator N L2,L3
45
Pectineus ACTION
hip joint: adduction, ext. rotation and slight flexion | stabilizes pelvis in coronal and sagittal plane
46
Adductor longus ORIGIN
superior pubic ramus & ant. side of pubic symphysis
47
Adductor Longus INSERTION
femur (linea aspera, medial lip in middle 1/3 of femur)
48
Adductor longus INNERVATION
obturator N | L2-L4
49
Adductor (longus & brevis) ACTION
hip joint: adduction & flexion (up to 70 degrees) ; extension (past 80 of flexion) stabilizes pelvis in coronal and sagittal planes
50
Adductor brevis ORGIN
inferior pubic ramus
51
Adductor Brevis INSERTION
femur (linea aspera, medial lip in middle 1/3 of femur)
52
Adductor Brevis INNERVATION
Obturator N | L2,L3
53
Gracilis ORIGIN
inf. pubic ramus below pubic symphysis
54
Gracilis INSERTION
tibia (medial border of tuberosity, along wit tendons of sartorius & semitendinosus)
55
Gracilis INNERVATION
Obturator N | L2,L3
56
Gracilis ACTION
hip joint: adduction & flexion | knee joint: flexion & int. rotation
57
Medial Thigh Muscles : superficial layer Names (4)
Pectineus adductor longus adductor brevis gracilis
58
Common Origin of Medial thigh muscles : superficial layer
inf. pubic ramus
59
Common insertion of Medial thigh muscles (except gracilis)
Linea aspera
60
Common Innervation of medial thigh muscles : superficial layer
OBTURATOR N | L2,L3
61
Obturator externus ORIGIN
outer surface of obturator membrane & bony boundaries
62
Obturator Externus INSERTION
Trochanteric fossa of femur
63
Obturator Externus INNERVATION
obturator nerve | L3,L4
64
Obturator Externus ACTION
hip joint: adduction & ext. rotation | stabilizes pelvis in sagittal plane
65
Adductor Magnus ORIGIN
inf. pubic ramus ischial ramus ischial tuberosity
66
Adductor Magnus INSERTION | *DEEP* OR fleshy insertion
medial lip of linea aspera
67
Adductor Magnus INSERTION | *Superficial* or Tendinous
adductor tubercle of femur
68
Adductor Magnus DEEP PART INNERVATION
obturator N | L2-L4
69
Adductor Magnus SUPERFICIAL PART INNERVATION
tibial N | L4
70
Adductor Magnus ACTION
hip joint: adduction, ext & slight flexion | stabilizes pelvis in coronal & sagittal plane
71
What 2 muscles consist of the iliopsoas?
Psoas Major | Iliacus
72
Biceps Femoris ORIGIN | LONG HEAD
long head: ischial tuberosity, sacrotuberous lig (common head with semitendinosus)
73
Biceps femoris ORIGIN | short head
lateral lip of linea aspear in middle 1/3 of femur
74
Biceps Femoris INSERTION
head of fibula
75
Biceps Femoris LONG HEAD INNERVATION
Tibial N | L5-S2
76
Biceps Femoris LONG HEAD ACTION
``` hip joint(long head): extends hip, stabilizes pelvis in sagittal plane knee joint: flexion and ext. rotation ```
77
Semimembranousus ORIGIN
ischial tuberosity
78
Semimembranosus INSERTION
medial tibial condyle oblique popliteal lig popliteus fascia
79
biceps femoris SHORT HEAD | INNERVATION
common fibular N | L5-S2
80
Semimembranosus INNERVATION
Tibial N | L5-S2
81
Semitendinosus ORIGIN
ischial tuberosity & sacrotuberous lig (common head with long head of biceps femoris)
82
Semitendinosus INSERTION
medial to tibial tuberosity in pes anserinus (along with the tendon of gracilis & sartorius)
83
Semitendinosus INNERVATION
Tibial N | L5-S2
84
Biceps Femoris SHORT HEAD ACTION
KNEE JOINT: flexion and external rot.
85
Semitendinosus & Semimembranosus ACION
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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