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OS 203 > Lower Extremity - Action > Flashcards

Lower Extremity - Action Flashcards

1
Q

What is the action of the tensor fasciae latae?

A

Flexor, abductor and medial rotator of thigh;

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2
Q

What is the action of the sartorius?

A

Flexor, abductor and lateral rotator of thigh; flexor of leg

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3
Q

What is the action of the rectus femoris?

A

Extensor of leg; flexor of thigh

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4
Q

What is the action of the vastus lateralis?

A

Extensor of leg

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5
Q

What is the action of the vastus intermedius?

A

Extensor of leg

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6
Q

What is the action of the vastus medialis?

A

Extensor of leg

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7
Q

What is the action of the pectineus?

A

Adductor, flexor and medial rotator of thigh

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8
Q

What is the action of the adductor longus?

A

Adductor, flexor and medial rotator of thigh

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9
Q

What is the action of the adductor brevis?

A

Adductor, flexor and medial rotator of thigh

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10
Q

What is the action of the obturator externus?

A

Lateral rotator of hip

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11
Q

What is the action of the adductor magnus?

A

Adductor of thigh

Adductor portion: flexor and medial rotator of thigh

Hamstring portion: extensor and lateral rotator of thigh

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12
Q

What is the action of the gracilis?

A

Adductor and medial rotator of thigh; flexor of leg

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13
Q

What is the action of the gluteus maximus?

A

Extensor and lateral rotator of thigh

Upper fibers - abductor of thigh

Lower fibers - adductor of thigh

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14
Q

What is the action of the gluteus medius?

A

Abductor and medial rotator of thigh

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15
Q

What is the action of the gluteus minimus?

A

Abductor and medial rotator of thigh

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16
Q

What is the action of the piriformis?

A

Abductor of flexed thigh; lateral rotator of extended thigh

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17
Q

What is the action of the superior gemellus?

A

Abductor of flexed thigh; lateral rotator of extended thigh

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18
Q

What is the action of the inferior gemellus?

A

Abductor of flexed thigh; lateral rotator of extended thigh

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19
Q

What is the action of the obturator internus?

A

Abductor of flexed thigh; lateral rotator of extended thigh

20
Q

What is the action of the quadratus femoris?

A

Lateral rotator of thigh

21
Q

What is the action of the semitendinosus?

A

Flexor and medial rotator of leg; extensor of thigh; extensor of back

22
Q

What is the action of the semimembranosus?

A

Flexor and medial rotator of leg; extensor of thigh; extensor of back

23
Q

What is the action of the biceps femoris?

A

Flexor and lateral rotator of leg

Long head: Thigh extensor

24
Q

What is the action of the peroneus longus?

A

Evertor of foot; weak plantarflexor of foot

25
Q

What is the action of the peroneus brevis?

A

Evertor of foot; weak plantarflexor of foot

26
Q

What is the action of the tibialis anterior?

A

Invertor of foot; dorsiflexion of foot

27
Q

What is the action of the extensor hallucis longus?

A

Extensor of big toe; weak dorsiflexion of foot; weak invertor of foot

28
Q

What is the action of the extensor digitorum longus?

A

Extensor of digits; dorsiflexor of foot

29
Q

What is the action of the gastrocnemius?

A

Flexor of leg; plantarflexor of foot; raises heel

30
Q

What is the action of the soleus?

A

Plantarflexion of foot; important in posture

31
Q

What is the action of the plantaris?

A

Weak flexor of leg; weak plantarflexor of foot

32
Q

What is the action of the popliteus?

A

Flexor and medial rotator of leg; lateral unlocker of knee

33
Q

What is the action of the flexor hallucis longus?

A

Flexes big toe; plantarflexor of foot; propels foot during walking

34
Q

What is the action of the flexor digitorum longus?

A

Flexor of digits; plantarflexion of foot; invertor of foot (aid)

35
Q

What is the action of the tibialis posterior?

A

Plantarflexor of foot; invertor of foot

36
Q

What is the action of the abductor hallucis?

A

Flexor and abductor of toe

37
Q

What is the action of the flexor digitorum brevis?

A

Flexor of the four lateral toes

38
Q

What is the action of the abductor digiti minimi?

A

Abductor and flexor of little toe

39
Q

What is the action of the flexor hallucis brevis?

A

Flexes big toe

40
Q

What is the action of the quadratus plantae?

A

Flexor aid of four lateral digits

41
Q

What is the action of the flexor digiti minimi brevis?

A

Flexor of little toe

42
Q

What is the action of the lumbricals?

A

Flexor of proximal phalanx; extensor of distal phalanges

43
Q

What is the action of the adductor hallucis?

A

Adductor and flexor of the big toe

44
Q

What is the action of the dorsal interossei?

A

Flexor of proximal phalanx; extensor of distal phalanges; abductor of phalanges

45
Q

What is the action of the plantar interossei?

A

Flexor of proximal phalanx; extensor of distal phalanges; adductor of phalanges

OS 203 (8 decks)

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