A&P Lab Exam 1 Functions (Muscles)

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38 Terms

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gluteus maximus
extension of thigh at hip , lateral rotation of thigh at hip
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gluteus medius and gluteus minimus
abduction and medial rotation of thigh at hip
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piriformis, obturator internus (tendon), gemelli
lateral rotation of extended thigh at hip, abduction of flexed thigh at the hip
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quadratus femoris
laterally rotates thigh at hip, adduction of thigh
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semitendinosus and semimembranosus
extension of thigh at hip, flexion of leg at knee and rotates medially
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biceps femoris (long/short head)
flexion of leg at knee and rotates it laterally, extension of thigh at hip
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tensor fasciate latae
abduction of thigh at hip, medial rotation of thigh at hip
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sartorius
abduction of thigh at hip, flexion of thigh at hip; lateral rotation of thigh at hip joint and flexion of knee joint (crisscross applesauce motion)
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rectus femoris
extension of leg at knee joint and flexion of thigh at hip
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vastus lateralis, vastus medialis, vastus intermedius
extension of leg at knee joint
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pectineus
adduction of thigh at hip, flexion of thigh at hip
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adductor longus
adduction of thigh at hip; external/lateral rotation and flexion of thigh at hip
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adductor brevis
adduction of thigh at hip; extension of thigh at hip
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adductor magnus
adduction of thigh at hip; flexion of thigh at hip
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gracilis
adduction of thigh at hip; flexion of leg at knee; assists in medial rotation
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quadriceps
extension of knee, flexion of hip
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illiopsoas
flexion of hip joint, external rotation of femur; flexor of thigh and trunk
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gastrocnemius
plantarflexion, flexion of leg at knee joint
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soleus
plantarflexion of foot at ankle, steadies leg on foot
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plantaris
plantarflexion, flexion of knee
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popliteus
flexion of leg at knee; unlocks knee
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flexor hallucis longus
flexion of great toe, plantarflexion
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flexor digitorum longus
flexion of lateral 4 digits, plantarflexion
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tibialis posterior
plantarflexion, inversion of foot
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tibialis anterior
dorsiflexion of foot, inversion of foot
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extensor hallucis longus
extends great toe, dorsiflexion
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extensor digitorum longus
extends lateral four digits, dorsiflexion
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fibularis tertius
dorsiflexion, eversion of foot
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fibularis longus and fibularis brevis
eversion of foot, plantarflexion
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extensor digitorum brevis
extension of toes 2-4
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extensor hallucis brevis
extension of great toe
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flexor digitorum brevis
flexes lateral four digits at interphalangeal joints
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Abductor Hallucis
abducts and flexes great toe
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Abductor Digiti Minimi
abducts and flexes little toe
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Flexor Digiti Minimi Brevis
flexes proximal phalanx of little toe
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Quadratus Plantae
assists flexor digitorum longus in flexing lateral four digits
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Adductor hallucis (transverse/oblique head)
adducts great toe; assists in maintaining transverse arch of the foot
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Lumbricals
flexion of proximal phalanges; extension of middle and distal phalanges of lateral four digits