Muscles Practical: Lower Leg, Foot and Hand

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Popliteus

origin: lateral condyle of femur and lateral meniscus of knee

insertion: proximal tibia

action: flexes knee and rotates leg medially to unlock extended knee

innvervation: Tibial Nerve

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Tibialis Anterior

origin: lateral condyle and 2/3 of the shaft of the tibia

insertion: into surface of medial cuneiform and first metatarsal bone

action: prime mover of dorsiflexion

innervation: deep fibular nerve

Deep

tibialis posterior

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Gastrocnemius Medial Head

origin: medial condyle

insertion: posteriror calcaneous

action: plantar flexes foot

innervation: Tibial nerve

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Gastrocnemius Lateral Head

origin: lateral condyle

insertion: posterior calcaneus

action: plantar flexes foot

innervation: Tibial nerve

soleus

Fibularis longus

Fibularis Brevis

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Flexor Digitorum Longus

origin: posterior tibia

insertion: medial malleous and distal phalanges

action: flexes toes

innveration: Tibial nerves

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Flexor Hallucis Longus

origin: midshaft of tibia

insertion: distal phalanx of big toe

action: flexes big toe

innervation: tibial nerve

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Extensor digitorum longus

origin: lateral condyle of tibia, ¾ of fibula

insertion: middle and distal phalanges

action: extends toes 2-5

innervation: deep fibular nerve

deep *

extensor hallucis longus

origin: anteromedial fibula

insertion: distal phalanx of big toe

action: extends great toe

innervation: deep fibular nerve

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Flexor Hallucis Brevis

Origin: lateral cuneiform and cuboid bones

Insertion: base of the proximal phalanx of the big toe

Action: flexes the big toe

Innervation: medial plantar nerve

extensor hallucis brevis

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extensor digitorum brevis

origin: anterior aspect of calcaneous bone

insertion: base of proximal phalanx of great toe,

action: extends toes 2-4

innervation: deep fibular nerve

Flexor digitorum brevis

abductor hallucis

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Extensor pollicis brevis

origin: dorsal shaft of radius and ulna

insertion: base of proximal phalanx of thumb

action: extends thumb

innervation: posterior interosseous nerve

Abductor pollicis longus

pronator teres

Supinator