Lower Leg Muscles

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44 Terms

1
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Sartorius Origin

Anterior superior iliac spine

<p>Anterior superior iliac spine</p>
2
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Sartorius Insertion

Anteromedial surface of upper tibia

<p>Anteromedial surface of upper tibia</p>
3
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Sartorius Action

Flexes and laterally rotates thigh, flexes leg

<p>Flexes and laterally rotates thigh, flexes leg</p>
4
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Pectineus

Adduct and flexes thigh

<p>Adduct and flexes thigh</p>
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Adductor brevis

Adducts and flexes thigh

<p>Adducts and flexes thigh</p>
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Adductor longus

Adducts and flexes thigh

<p>Adducts and flexes thigh</p>
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Adductor magnus

adducts thigh;
Adductor part flexes thigh;
Hamstring part extends and laterally rotate thigh

<p>adducts thigh;<br>Adductor part flexes thigh;<br>Hamstring part extends and laterally rotate thigh</p>
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Gracilis

Adducts and flexes

<p>Adducts and flexes</p>
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Gluteus Maximus

Extends and laterally rotates thigh

<p>Extends and laterally rotates thigh</p>
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gluteus medius

Abducts and medially rotates thigh; stabilizes pelvis during walking

<p>Abducts and medially rotates thigh; stabilizes pelvis during walking</p>
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Gluteus minimus

Abducts and medially rotates thigh; stabilizes pelvis during walking

<p>Abducts and medially rotates thigh; stabilizes pelvis during walking</p>
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Piriformis

Laterally rotates thigh

<p>Laterally rotates thigh</p>
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Tensor fascia latae

abducts and medially rotates thigh

<p>abducts and medially rotates thigh</p>
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Rectus femoris Origin

Anterior inferior iliac spine

<p>Anterior inferior iliac spine</p>
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Rectus femoris Insertion

quadriceps tendon to patella; patellar ligament to tibial tuber

<p>quadriceps tendon to patella; patellar ligament to tibial tuber</p>
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Rectus femoris Action

Extends leg; flexes thigh

<p>Extends leg; flexes thigh</p>
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Vastus Intermedius Insertion

Quadriceps tendon patella; patellar ligament to tibial tuberosity

<p>Quadriceps tendon patella; patellar ligament to tibial tuberosity</p>
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Vastus Intermedius Action

Extends leg

<p>Extends leg</p>
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Vastus medialis Insertion

Quadriceps tendon patella; patellar ligament to tibial tuberosity

<p>Quadriceps tendon patella; patellar ligament to tibial tuberosity</p>
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Vastus Medialis Action

Extends leg

<p>Extends leg</p>
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Vastus lateralis Insertion

Quadriceps tendon patella; patellar ligament to tibial tuberosity

<p>Quadriceps tendon patella; patellar ligament to tibial tuberosity</p>
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Vastus lateralis Action

Extends leg

<p>Extends leg</p>
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Biceps Femoris Origin

long head - ischial tuberosity of os coxae; short head - linea aspera of femur

<p>long head - ischial tuberosity of os coxae; short head - linea aspera of femur</p>
24
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Biceps Femoris Action

Flexes and laterally rotates leg; Long head: extends thigh

<p>Flexes and laterally rotates leg; Long head: extends thigh</p>
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Semitendinosus Origin

Ischial tuberosity

<p>Ischial tuberosity</p>
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Semitendinosus Action

Extends thigh; flexes and medially rotates leg

<p>Extends thigh; flexes and medially rotates leg</p>
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Semimembranosus Origin

ischial tuberosity

<p>ischial tuberosity</p>
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Semimembranosus Action

Extends thigh; flexes and medially rotates leg

<p>Extends thigh; flexes and medially rotates leg</p>
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Tibialis anterior

dorsiflexes and inverts foot

<p>dorsiflexes and inverts foot</p>
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Extensor hallucis longus

extends great toe; dorsiflexes foot

<p>extends great toe; dorsiflexes foot</p>
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Extensor digitorum longus (leg)

extends toes 2-5; dorsiflexes foot

<p>extends toes 2-5; dorsiflexes foot</p>
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Fibularis (peroneus) longus

Everts foot; weak plantar flexor

<p>Everts foot; weak plantar flexor</p>
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Fibularis (peroneus) brevis

Everts foot; weak plantar flexor

<p>Everts foot; weak plantar flexor</p>
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Gastrocnemius Origin

Lateral and medial condyles of femur

<p>Lateral and medial condyles of femur</p>
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Gastrocnemius Insertion

Calcaneus (via calcaneal tendon)

<p>Calcaneus (via calcaneal tendon)</p>
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Gastrocnemius Action

flexes leg, plantar flexes foot

<p>flexes leg, plantar flexes foot</p>
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Soleus Origin

Head and proximal shaft of fibula; medial border of tibia

<p>Head and proximal shaft of fibula; medial border of tibia</p>
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Soleus Insertion

calcaneus via calcaneal tendon

<p>calcaneus via calcaneal tendon</p>
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Soleus Action

plantar flexes foot

<p>plantar flexes foot</p>
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Plantaris

Weak leg flexor and plantar flexor

<p>Weak leg flexor and plantar flexor</p>
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Tibialis posterior

plantar flexes foots; inverts foot

<p>plantar flexes foots; inverts foot</p>
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Flexor digitorum longus

Plantar flexes foot; flexes MP, PIP, DIP joints of toes 2-5

<p>Plantar flexes foot; flexes MP, PIP, DIP joints of toes 2-5</p>
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Flexor hallucis longus

Plantar flexes foot; flexes MP and IP joints of great toe

<p>Plantar flexes foot; flexes MP and IP joints of great toe</p>
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Popliteus

Flexes leg; medially rotates tibia to unlock the knee

<p>Flexes leg; medially rotates tibia to unlock the knee</p>