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MSK extras > muscles of the thigh > Flashcards

muscles of the thigh Flashcards

1
Q

what are the muscles of the posterior thigh?

A

hamstrings:
* bicep femoris
* semitendinosus
* semimembranosus

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2
Q
  1. what is the origin of bicep femoris?
  2. what is the insertion of bicep femoris?
  3. what is the action of bicep femoris?
  4. what is the innervation of bicep femoris?
A
  1. LH = ischial tuberosity + SH = linea aspera
  2. fibula
  3. knee flexion, hip extension + lateral rotation
  4. LH = tibial nerve + SH = common fibular nerve
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3
Q
  1. what is the origin of semitendinosus?
  2. what is the insertion of semitendinosus?
  3. what is the action of semitendinosus?
  4. what is the innervation of semitendinosus?
A
  1. ischail tuberosity
  2. tibia
  3. knee flexion + medial rotation
  4. tibial nerve
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4
Q
  1. what is the origin of semimembranosus?
  2. what is the insertion of semimembranosus?
  3. what is the action of semimembranosus?
  4. what is the innervation of semimembranosus?
A
  1. ischial tuberosity
  2. medial tibial condyle
  3. knee flexion, hip extension + medial rotation
  4. tibial nerve
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5
Q

what are the muscles of the anterior thigh?

A
  • ilipsoas
  • quadriceps
  • sartorius
  • pectineus
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6
Q

what are the quadricep muscles?

A
  • vastus lateralis
  • vastus intermedius
  • vastus medialis
  • rectus femoris
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7
Q
  1. what is the origin of iliopsoas?
  2. what is the insertion of iliopsoas?
  3. what is the action of ilipsoas?
  4. what is the innervation of iliopsoas?
A
  1. PM = lumbar spine + I = iliac fossa
  2. lesser trochanter
  3. hip flexion + lateral rotation
  4. femoral nerve
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8
Q
  1. what is the origin of vastus lateralis?
  2. what is the insertion of vastus lateralis?
  3. what is the action of vastus lateralis?
  4. what is the innervation of vastus lateralis?
A
  1. greater trochanter
  2. patella
  3. knee extension
  4. femoral nerve
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9
Q
  1. what is the origin of vastus intermedius?
  2. what is the insertion of vastus intermedius?
  3. what is the action of vastus intermedius?
  4. what is the innervation of vastus intermedius?
A
  1. femur
  2. patella
  3. knee extension
  4. femoral nerve
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10
Q
  1. what is the origin of vastus medialis?
  2. what is the insertion of vastus medialis?
  3. what is the action of vastus medialis?
  4. what is the innervation of vastus medialis?
A
  1. intertrochanteric line
  2. patella
  3. knee extension
  4. femoral nerve
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11
Q
  1. what is the origin of rectus femoris?
  2. what is the insertion of rectus femoris?
  3. what is the action of rectus femoris?
  4. what is the innervation of rectus femoris?
A
  1. ilium
  2. patella
  3. knee extension + hip flexion
  4. femoral nerve
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12
Q
  1. what is the origin of sartorius?
  2. what is the insertion of sartorius?
  3. what is the action of sartorius?
  4. what is the innervation of sartorius?
A
  1. ASIS
  2. tibia
  3. hip flexion, leg abduction, lateral rotation + knee flexion
  4. femoral nerve
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13
Q
  1. what is the origin of pectineus?
  2. what is the insertion of pectineus?
  3. what is the action of pectineus?
  4. what is the innervation of pectineus?
A
  1. pelvis
  2. femur
  3. hip flexion + leg adduction
  4. femoral and obturator nerve
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14
Q

what are the muscles of the medial thigh?

A
  • adductor magnus
  • adductor brevis
  • adductor longus
  • obturator externus
  • gracillus
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15
Q
  1. what is the origin of adductor magnus?
  2. what is the insertion of adductor magnus?
  3. what is the action of adductor magnus?
  4. what is the innervation of adductor magnus?
A
  1. ADD = pubis + HS: ischial tuberosity
  2. ADD = linea aspera + HS = adductor tubercle
  3. leg adduction, ADD = hip flexion + HS = hip extension
  4. ADD = obturator nerve + HS = tibial nerve
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16
Q
  1. what is the origin of adductor longus?
  2. what is the insertion of adductor longus?
  3. what is the action of adductor longus?
  4. what is the innervation of adductor longus?
A
  1. pubis
  2. linea aspera
  3. leg adduction + medial rotation
  4. obturator nerve
17
Q
  1. what is the origin of adductor brevis?
  2. what is the insertion of adductor brevis?
  3. what is the action of adductor brevis?
  4. what is the innervation of adductor brevis?
A
  1. pubis
  2. linea aspera
  3. leg adduction
  4. obturator nerve
18
Q
  1. what is the origin of obturator externus?
  2. what is the insertion of obturator externus?
  3. what is the action of obturator externus?
  4. what is the innervation of obturator externus?
A
  1. obturator foramen
  2. greater trochanter
  3. lateral rotation
  4. obturator nerve

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