Muscles of the Crural and Pedal Region

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Description and Tags

4 groups

16 Terms

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Muscles of the Superficial posterior compartment of the leg

Gastrocnemius, Plantaris, Soleus

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Gastrocnemius

Origin - posterior surface of medial and lateral epicondyles of femur

Insertion - posterior calcaneus via achilles tendon

Action - Flexes leg at knee, plantar flex foot

Innervation - Tibial nerve

<p>Origin - posterior surface of medial and lateral epicondyles of femur</p><p>Insertion - posterior calcaneus via achilles tendon</p><p>Action - Flexes leg at knee, plantar flex foot</p><p>Innervation - Tibial nerve</p>
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Plantaris

Origin - posterior surface of femur proximal to lateral epicondyle

Insertion - Posterior calcaneus via Achilles tendon

Action - Flex leg at knee, plantar flex foot

Innervation - tibial nerve

<p>Origin - posterior surface of femur proximal to lateral epicondyle</p><p>Insertion - Posterior calcaneus via Achilles tendon</p><p>Action - Flex leg at knee, plantar flex foot</p><p>Innervation - tibial nerve</p>
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Soleus

Origin - Posterior surface of proximal tibia and fibula

Insertion - posterior calcaneus via Achilles tendon

Action - Plantar flex foot

Innervation - Tibial nerve

<p>Origin - Posterior surface of proximal tibia and fibula</p><p>Insertion - posterior calcaneus via Achilles tendon</p><p>Action - Plantar flex foot</p><p>Innervation - Tibial nerve </p>
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Muscles of the Deep Posterior Compartment of the Leg

Tibialis posterior, Flexor digitorum longus, Flexor Hallucis longus

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Tibialis posterior

Origin - posterior surface of tibia fibula and interosseous membrane

Insertion - Navicular cuneiforms metatarsals 2-4

Action - Plantar flexes and inverts foot

Innervation - Tibial nerve

<p>Origin - posterior surface of tibia fibula and interosseous membrane </p><p>Insertion - Navicular cuneiforms metatarsals 2-4</p><p>Action - Plantar flexes and inverts foot</p><p>Innervation - Tibial nerve</p>
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Flexor Digitorum Longus

Origin - Posterior surface of middle tibia

Insertion - Distal phalanges of toes 2-5

Action - Plantar flexes foot flexes toes 2-5

Innervation - Tibial nerve

<p>Origin - Posterior surface of middle tibia</p><p>Insertion - Distal phalanges of toes 2-5</p><p>Action - Plantar flexes foot flexes toes 2-5</p><p>Innervation - Tibial nerve </p>
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Flexor Hallucis Longus

Origin -Posterior surface of distal fibula

Insertion - Distal phalanx of big toe

Action - Plantar flexes foot flexes big toe

Innervation - Tibial Nerve

<p>Origin -Posterior surface of distal fibula</p><p>Insertion - Distal phalanx of big toe</p><p>Action - Plantar flexes foot flexes big toe</p><p>Innervation - Tibial Nerve </p>
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Muscles of the lateral compartment of the leg

Fibularis longus, Fibularis brevis

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Fibularis longus

Origin - Later surface of proximal fibula

Insertion - metatarsal 1 and medial cuneiform

Action - Plantar flex and evert foot

Innervation - Common fibular nerve

<p>Origin - Later surface of proximal fibula</p><p>Insertion - metatarsal 1 and medial cuneiform</p><p>Action - Plantar flex and evert foot</p><p>Innervation - Common fibular nerve</p>
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Fibularis brevis

Origin - lateral surface of distal fibula

Insertion - dorsal surface of metatarsal 5

Action - Plantar flexes and evert foot

Innervation - common fibular nerve

<p>Origin - lateral surface of distal fibula</p><p>Insertion - dorsal surface of metatarsal 5</p><p>Action - Plantar flexes and evert foot</p><p>Innervation - common fibular nerve</p>
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Muscles of the Anterior Compartment of the Leg

Tibialis anterior, extensor digitorum longus, extensor hallucis longus, Fibularis tertius

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Tibialis anterior

Origin - Lateral surface of proximal tibia

Insertion - Metatarsal 1 and medial cuneiform

Action - Dorsiflex and invert foot

Innervation - common fibular nerve

<p>Origin - Lateral surface of proximal tibia</p><p>Insertion - Metatarsal 1 and medial cuneiform</p><p>Action - Dorsiflex and invert foot</p><p>Innervation - common fibular nerve</p>
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Extensor Digitorum longus

Origin - anterior surface of fibula and interosseous membrane

Insertion - distal phalanges of toes 2-5

Action - Dorsiflex foot and extend toes 2-5

Innervation - common fibular nerve

<p>Origin - anterior surface of fibula and interosseous membrane</p><p>Insertion - distal phalanges of toes 2-5</p><p>Action - Dorsiflex foot and extend toes 2-5</p><p>Innervation - common fibular nerve </p>
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Extensor hallucis longus

Origin - Anterior surface of fibula and interosseous membrane

Insertion - Distal phalanx of big toe

Action - dorsiflex foot and extend big toes

Innervation - Common fibular nerve

<p>Origin - Anterior surface of fibula and interosseous membrane </p><p>Insertion - Distal phalanx of big toe</p><p>Action - dorsiflex foot and extend big toes</p><p>Innervation - Common fibular nerve </p>
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Fibularis Tertius

Origin - Anterior surface of distal fibula

Insertion - Dorsal surface of metatarsal 5

Action - Dorsiflex and evert foot

Innervation - common fibular nerve

<p>Origin - Anterior surface of distal fibula</p><p>Insertion - Dorsal surface of metatarsal 5</p><p>Action - Dorsiflex and evert foot</p><p>Innervation - common fibular nerve</p>