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47 terms

Actions muscles of lower limb

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Pectineus
adducts, flexes, and medially rotates thigh
Sartorius
abducts, flexes and laterally rotates thigh
flexes and medially rotates leg
Rectus femoris
flexes thigh
extends leg
Vastus lateralis
extends leg
Vastus intermedius
extends leg
Adductor longus
adducts thigh
Adductor brevis
adducts thigh
flexes thigh
Adductor magnus
adducts thigh
adductor part: flexes thigh
hamstrings part: extends thigh
Gracilis
adducts thigh
flexes and medially rotates leg
Obturator
laterally rotates thigh
Gluteus maximus
extends and laterally rotates thigh
Gluteus medius
abducts and medially rotates thigh
keeps pelvis level when standing on one leg
Gluteus minimus
abducts and medially rotates thigh
keeps pelvis level when standing on one leg
Tensor of fascia lata
abducts and medially rotates thigh
keeps pelvis level when standing on one leg
Piriformis
laterally rotates extended thigh
abducts flexed thigh
Obturator internus
laterally rotates extended thigh
abducts flexed thigh
Superior gemullus
laterally rotates extended thigh
abducts flexed thigh
Inferior gemullus
laterally rotates extended thigh
abducts flexed thigh
Quadratus femoris
laterally rotates thigh
Semitendinosus
extends thigh or trunk
flexes and rotates leg medially
Semimembranosus
extends thigh or trunk
flexes and rotates leg medially
Biceps femoris
long head only: extends thigh or trunk
both heads: flex and rotate leg laterally
Tibialis anterior
dorsiflexes and inverts foot
Extensor digitorum longus
extends digits 2-5
dorsiflexes foot
Extensor hallucis longus
extends digit 1
dorsiflexes foot
Fibularis tertius
dorsiflexes and everts foot
Fibularis longus
everts and plantarflexes foot
Fibularis brevis
everts and plantarflexes foot
Gastrocnemius
plantarflexes foot
flexes leg
Soleus
plantarflexes foot
Plantaris
plantarflexes foot
Popliteus
flexes leg
medially rotates tibia
laterally rotates femur to unlock knee
Flexor hallucis longus
flexes digit 1
plantarflexes
Flexor digitorum longus
flexes digits 2-5
plantarflexes foot
Tibialis posterior
plantarflexes and inverts foot
Extensor digitorum brevis
extends digits 2-4
Extensor hallucis brevis
extends digits 1
Dorsal interossei
abducts digits 2-4
flex metatarsophalangeal joints
Abductor hallucis
abducts and flexes digit 1
Flexor digitorum brevis
flexes digits 2-5
Abductor digiti minimi
abducts and flexes digit 5
Quadratus plantae
assists flexor digitorum longus muscles in flexing digits 2-5
Lumbrical
flex metatarsophalangeal joints of digits 2-5
extend interphalangeal joints of digits 2-5
Flexor hallucis brevis
flex proximal phalanx of digit 1
Adductor hallucis
adduct digit 1
Flexor digiti minimi brevis
flexes MTP joints of digit 5
Plantar interossei
adduct digits 3-5, flex MTP joints of digits 3-5