Lower Extremity - Action Flashcards
What is the action of the tensor fasciae latae?
Flexor, abductor and medial rotator of thigh;
What is the action of the sartorius?
Flexor, abductor and lateral rotator of thigh; flexor of leg
What is the action of the rectus femoris?
Extensor of leg; flexor of thigh
What is the action of the vastus lateralis?
Extensor of leg
What is the action of the vastus intermedius?
Extensor of leg
What is the action of the vastus medialis?
Extensor of leg
What is the action of the pectineus?
Adductor, flexor and medial rotator of thigh
What is the action of the adductor longus?
Adductor, flexor and medial rotator of thigh
What is the action of the adductor brevis?
Adductor, flexor and medial rotator of thigh
What is the action of the obturator externus?
Lateral rotator of hip
What is the action of the adductor magnus?
Adductor of thigh
Adductor portion: flexor and medial rotator of thigh
Hamstring portion: extensor and lateral rotator of thigh
What is the action of the gracilis?
Adductor and medial rotator of thigh; flexor of leg
What is the action of the gluteus maximus?
Extensor and lateral rotator of thigh
Upper fibers - abductor of thigh
Lower fibers - adductor of thigh
What is the action of the gluteus medius?
Abductor and medial rotator of thigh
What is the action of the gluteus minimus?
Abductor and medial rotator of thigh
What is the action of the piriformis?
Abductor of flexed thigh; lateral rotator of extended thigh
What is the action of the superior gemellus?
Abductor of flexed thigh; lateral rotator of extended thigh
What is the action of the inferior gemellus?
Abductor of flexed thigh; lateral rotator of extended thigh
What is the action of the obturator internus?
Abductor of flexed thigh; lateral rotator of extended thigh
What is the action of the quadratus femoris?
Lateral rotator of thigh
What is the action of the semitendinosus?
Flexor and medial rotator of leg; extensor of thigh; extensor of back
What is the action of the semimembranosus?
Flexor and medial rotator of leg; extensor of thigh; extensor of back
What is the action of the biceps femoris?
Flexor and lateral rotator of leg
Long head: Thigh extensor
What is the action of the peroneus longus?
Evertor of foot; weak plantarflexor of foot
What is the action of the peroneus brevis?
Evertor of foot; weak plantarflexor of foot
What is the action of the tibialis anterior?
Invertor of foot; dorsiflexion of foot
What is the action of the extensor hallucis longus?
Extensor of big toe; weak dorsiflexion of foot; weak invertor of foot
What is the action of the extensor digitorum longus?
Extensor of digits; dorsiflexor of foot
What is the action of the gastrocnemius?
Flexor of leg; plantarflexor of foot; raises heel
What is the action of the soleus?
Plantarflexion of foot; important in posture
What is the action of the plantaris?
Weak flexor of leg; weak plantarflexor of foot
What is the action of the popliteus?
Flexor and medial rotator of leg; lateral unlocker of knee
What is the action of the flexor hallucis longus?
Flexes big toe; plantarflexor of foot; propels foot during walking
What is the action of the flexor digitorum longus?
Flexor of digits; plantarflexion of foot; invertor of foot (aid)
What is the action of the tibialis posterior?
Plantarflexor of foot; invertor of foot
What is the action of the abductor hallucis?
Flexor and abductor of toe
What is the action of the flexor digitorum brevis?
Flexor of the four lateral toes
What is the action of the abductor digiti minimi?
Abductor and flexor of little toe
What is the action of the flexor hallucis brevis?
Flexes big toe
What is the action of the quadratus plantae?
Flexor aid of four lateral digits
What is the action of the flexor digiti minimi brevis?
Flexor of little toe
What is the action of the lumbricals?
Flexor of proximal phalanx; extensor of distal phalanges
What is the action of the adductor hallucis?
Adductor and flexor of the big toe
What is the action of the dorsal interossei?
Flexor of proximal phalanx; extensor of distal phalanges; abductor of phalanges
What is the action of the plantar interossei?
Flexor of proximal phalanx; extensor of distal phalanges; adductor of phalanges