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Anatomy_LE_mus_func
Anatomy Lower Extremity Muscles Functions
| Question | Answer |
|---|---|
| Gluteus Maximus- function | extension, hyperextension, and external rotation of the thigh/trunk at the hip |
| Gluteus Medius- function | abduction of the thigh/trunk at the hip |
| Gluteus Minimus- function | flexion and internal rotation of the thigh/trunk at the hip |
| piriformis- function | lateral rotation of the thigh/trunk at the hip |
| Superior gemellus- function | lateral rotation of the thigh/trunk at the hip |
| Obturator internus- function | lateral rotation of the thigh/trunk at the hip |
| INferior gemellus- function | lateral rotation of the thigh/trunk at the hip |
| Quadratus femoris- function | lateral rotation of the thigh/trunk at the hip |
| Obturator externus- function | lateral rotation of the thigh/trunk at the hip |
| biceps femoris- function | extension, hrperextension and external rotation of the thigh/trunk at the hip. Flexion of the leg at the knee |
| Semitendinosus- function | extension, hyperextension and internal rotation of the thigh/trunk at the hip. Flexion of the leg at the knee |
| Semimembranosus- function | extension, hyperextension and internal rotation of the thigh/trunk at the hip. Flexion of the leg at the knee |
| Iliacus- function | flexion of the thigh/trunk at the hip |
| Psoas major- function | flexion of the thigh/trunk at the hip |
| Psoas minor- function | flexion of the lumbar vertebre |
| Rectus femoris- function | flexion of the thigh/trunk at the hip. Extension of the leg at the knee |
| Vastus lateralis- function | extension fo the leg at the knee |
| Vastus medialis- function | extension of the leg at the knee |
| Vastus intermedius- function | extension of the leg at the knee |
| tensor fasciae latae- function | abduction and flexion of the thigh/trunk at the hip |
| sartorius-function | flexion and lateral rotation of the thigh/trunk at the hip. Flexion of the leg at the knee |
| Pectineus- function | adduction and lateral rotation of the thigh/trunk at the hip |
| Adductor longus- function | Adduction and lateral rotation of the thigh/trunk at the hip |
| Adductor brevis- function | adduction and lateral rotation of the thigh/trunk at the hip |
| adductor magnus- function | adduction and lateral rotation of the thigh/trunk at the hip |
| gracilis- function | adduction and medial rotation of the thigh /trunk at the hip |
| tibialis anterior- function | dorsiflexion and inversion of the foot at the ankle |
| Extensor digitorum longus- function | dorsiflexion of the foot at the ankle. Extension of digits 2-5 |
| Extensor hallucis longus- function | dorsiflexion and inversion of the foot at the ankle. Extension of the 1rst digit |
| Fibularis tertius- function | dorsiflexion and eversion of the foot at the ankle |
| Fibularis longus- function | plantarflexion and eversion of the foot at the ankle |
| Fibularis brevis- function | plantarflexion and eversion of the foot at the ankle |
| Gastrocnemius- function | flexion of the leg at the knee. Plantarflexion of the foot at the ankle |
| Plantaris- function | flexion of the leg at the knee. Plantarflexion of the foot at the ankle |
| Soleus- function | plantarflexion of the foot at the ankle |
| Popliteus- function | unlocks the knee from a fully extended position |
| Tibialis posterior- function | plantarflexion and inversion of the foot at the ankle |
| Flexor digitorum longus- function | plantarflexion and inversion of the foot at the ankle. Flexion of the digits |
| Flexor hallucis longus- functino | plantarflexion and inversion of the foot at the ankle. flexion of the 1rst digit |
| Extensor Digitorum brevis- function | extension of digits 2-5 |
| Extensor hallucis brevis- function | extension of 1rst digit |
| Dorsal interosseeus- function | abduction of all of the digits |
| Abductor hallucis- function | abduction of the 1rst digit |
| Flexor hallucis brevis- function | flexion of the 1rst digit |
| Abductor digiti minimi- function | abduction of the 5th digit |
| Flexor digiti minimi- function | flexion of the 5th digit |
| Flexion digitorum brevis- function | flexion of digits 2-5 |
| Adductor hallucis- function | adduction of 1rst digit |
| Quadratus plantae- function | fixes the tracking of the flexor digitorum longus tendon so that the digits are flexed evenly |
| Lumbrical- function | flexion of the metatarsals while simultaneously extending of hyperextending the phalanges |
| Plantar Interosseus- function | adduction of all of the digits |
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