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MSKI > Gluteal Region and Posterior Thigh Muscle Chart > Flashcards

Gluteal Region and Posterior Thigh Muscle Chart Flashcards

1
Q

Gluteus Maximus action

A

Extends thigh (especially from flexed position), assists in lateral rotation of thigh, (assists in rising from seated position)

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2
Q

Gluteus Medius action

A

Abduct and medially rotate thigh; keep pelvis level

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3
Q

Gluteus Minimus action

A

Abduct and medially rotate thigh; keep pelvis level

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4
Q

Piriformis action

A

Laterally rotate extended thigh and abduct flexed thigh

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5
Q

Obturator Internus action

A

Laterally rotate extended thigh and abduct flexed thigh

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6
Q

Obturator Externus action

A

Laterally rotates thigh

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7
Q

Superior and Inferior Gemelli action

A

Laterally rotate extended thigh and abduct flexed thigh

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8
Q

Quadratus Femoris action

A

Laterally rotates thigh

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9
Q

Biceps Femoris action

A

Flexes leg and rotates it laterally when knee is flexed; extends thigh

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10
Q

Semitendinosus action

A

Extend thigh; flex leg and rotate it medially when knee is flexed

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11
Q

Semimembranosus action

A

Extend thigh; flex leg and rotate it medially when knee is flexed

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12
Q

Superior Gluteal Nerve Innervations

A

Gluteus Medius

Gluteus Minimus

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13
Q

Piriformis innervation

A

Ventral rami of S1 and S2

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14
Q

Nerve to Obturator Internus innervations

A

Obturator Internus

Superior Gemellus

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15
Q

Nerve to Quadratus Femoris innervations

A

Inferior Gemellus

Quadratus Femoris

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16
Q

Biceps Femoris innervation

A

Long head: tibial division of sciatic nerve;

Short head: common fibular division of sciatic nerve

17
Q

Semitendinosus and Semimembranosus innervations

A

Tibial Division of Sciatic Nerve

18
Q

Obturator Externus innervation

A

Obturator nerve

19
Q

Gluteus Maximus innervation

A

Inferior gluteal nerve

20
Q

Muscles that laterally rotate extended thigh and abduct flexed thigh

A

Piriformis
Obturator Internus
Superior Gemellus
Inferior Gemellus

21
Q

Muscles that steady head of femur in acetabulum

A 
Piriformis 
Obturator Internus
Obturator Externus
Superior Gemellus
Inferior Gemellus
Quadratus Femoris

MSKI (7 decks)

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