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Muscular skeletal anatomy > Pelvic girdle and thigh > Flashcards

Pelvic girdle and thigh Flashcards

1
Q

What are the attachments of the piriformis?

A

Origin:
The anterior surface of the sacrum
Insertion:
Superior aspect of greater trochanter

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2
Q

What are the actions of the piriformis?

A

Laterally rotate the hip (coxal joint)

Abduct the hip when the hip is flexed

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3
Q

What are the attachments of the quadratus femoris?

A

Lateral border of ischial tuberosity

Intertrochanteric crest, between the greater and lesser trochanters

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4
Q

What are the actions of the quadratus femoris?

A

Laterally rotate the hip (coxal joint)

There are no other movements.

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5
Q

What are the attachments of the tensor fasciae latae?

A

Iliac crest, posterior to the ASIS

Iliotibial tract

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6
Q

What are the actions of the tensor fasciae latae?

A

Flex the hip (coxal joint)
Medially rotate the hip (coxal joint)
Abduct the hip (coxal joint)

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7
Q

What are the attachments of the sartorius?

A

Anterior superior iliac spine (ASIS)

Proximal, medial shaft of the tibia at pes anserinus tendon

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8
Q

What are the actions of the sartorius?

A 
Flex the hip (coxal joint)
Laterally rotate the hip (coxal joint)
Abduct the hip (coxal joint)
Flex the knee (tibiofemoral joint)
Medially rotate the flexed knee (T/F joint)
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9
Q

Where does the Rectus femoris attach?

A 
Rectus femoris: Anterior inferior iliac spine (AIIS)
Tibial tuberosity (via the patella and patellar ligament)
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10
Q

What actions does the Rectus femoris do?

A

Extend the knee (tibiofemoral joint)

Flex the hip (coxal joint)

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11
Q

Where does the Vastus medialis attach?

A 
Vastus medialis: Medial lip of linea aspera
Tibial tuberosity (via the patella and patellar ligament)
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12
Q

What actions does the Vastus medialis do?

A

Extend the knee (tibiofemoral joint)

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13
Q

Where does the Vastus lateralis attach?

A 
Vastus lateralis: Lateral lip of linea aspera, gluteal tuberosity, and greater trochanter
Tibial tuberosity (via the patella and patellar ligament)
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14
Q

What actions does the Vastus lateralis do?

A

Extend the knee (tibiofemoral joint)

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15
Q

What does the biceps femoris do?

A
  • Flex the knee (tibiofemoral joint)
  • Laterally rotate flexed knee (T/F joint)
  • Extend the hip (coxall)
  • Assist to laterally rotate the hip (coxal joint)
  • Tilt the pelvis posteriorly
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16
Q

Where does the biceps femoris attach?

A
  • Ischial tuberosity
  • Lateral lip of linea aspera
  • Head of fibula
17
Q

What action does the Semitendinosus do?

A
  • Flex the knee (tibiofemoral joint)
  • Medially rotate the flex knew (T/F joint)
  • Extend the hip (coxal joint)
  • Assist to medioally rotate the hip (coxal joint)
  • Tilt the pelvis posteriorly
18
Q

Where does the Semitendinosus attach?

A
  • Ischial tuberosity

* Proximal, medial shaft of the tibia at pes anserinus tendon

19
Q

What action does Semimembranosus do?

A
  • Flex the knee (tibiofemoral joint)
  • Medially rotate the flex knee (T/F joint)
  • Extend the hip (coxal joint)
  • Assist to medially rotate the hip (coxal joint)
  • Tilt the pelvis posteriorly
20
Q

Where does the Semimembranosus attach?

A
  • Ischial tuberosity

* Posterior aspect of the medial condyle of the tibia

21
Q

What does the popliteus do?

A
  • Medially rotate the flex knee (tibiofemoral joint)

* Flex the knee (t/F joint)

22
Q

Where does the popliteus attach?

A
  • Lateral condyle of the femur

* Proximal, posterior aspect of the tibia

23
Q

What actions does the gastrocnemius do?

A
  • Flex the knee (tibiofemoral joint)

* Plantar flex the ankle (talocrural joint)

24
Q

What are the attachments of the gastrocnemius?

A
  • Condyles of the femur
  • Posterior surfaces
  • Calcaneus via calcaneal tendon
25
Q

What actions does the soleus do?

A

• Plantar flex the ankle (talocrural joint)

26
Q

What are the attachments of the soleus?

A
  • Soleal line
  • Proximal, posterior surface of tibia
  • Posterior aspect of head of fibula
  • Calcaneus via calcaneal tendon
27
Q

What actions does the tibialis anterior do?

A
  • Invert the foot

* Dorsiflex the ankle (talocrural joint)

28
Q

Where does the tibialis attach?

A
  • Lateral condyle of tibia
  • Proximal and lateral surface of the tibia
  • Interosseous membrane
  • Medial cuneiform
  • Base of the first metatarsal
29
Q

What actions does the extensor digitorum longus do?

A
  • Extend the second through fifth toes (metatarsophalangeal and interphalangeal joint)
  • Dorsiflex the ankle (talocrural joint)
  • Evert the foot
30
Q

Where does the extensor digitorum longus attach?

A
  • Lateral condyle of tibia
  • Proximal, anterior shaft of fibula
  • Interosseous membrane
  • Middle and distal phalanges of second through. Fifth toes
31
Q

What does the fibularis longus / peroneus longus do?

A

Peroneus longus:

Actions: Evert the foot, assist to plantarflex the ankle

32
Q

Where does the fibularis longus / peroneus longus attach?

A

Origins: Head of fibula and proximal two-thirds of lateral fibula
Insertion: Base of the first metatarsal and medial cuneiform

33
Q

What does the fibularis brevis / Peroneus brevis do?

A

Peroneus brevis:

Actions: Evert the foot, assist to plantarflex the ankle

34
Q

Where does the fibularis brevis / Peroneus brevis attach?

A

Origin: Distal two-thirds of lateral fibula
Insertion: Tuberosity of fifth metatarsal

Muscular skeletal anatomy (4 decks)

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