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mahp
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Tibialis anterior
- Origin= Lateral condyle and upper two thirds of tibial shaft; interosseous membrane.
- Insertion= By tendon into inferior surface of medial cuneiform and first metatarsal bone.
- Action= Dorsiflexion; inverts foot
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Extensor digitorium longus
- Origin= Lateral condyle of tibia; proximal three fours of fibula;interosseous membrane.
- Insertion= Middle and distal phalanges 2-5.
- Action= Toe extension;dorsiflex foot
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Extensor hallucis longus
- Origin= Anteromedial fibular shaft and interosseous membrane.
- Insertion= Tendon inserts on distal phalanx of great toe.
- Action= Extends great toe; dorsiflexes foot
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Fibularis longus
- Origin= Head and upper portion of lateral side of fibula.
- Insertion= By long tendon that curves under foot to first metatarsal and medial cuneiform.
- Action= Plantar flexes amd everts foot.
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Gastrocnemius (Fio's muscle)
- Origin= by two heads from medial and lateral condyles of femur.
- Insertion= Posterior calcalneus via calcaneal tendon.
- Action= Plantar flexes foot.
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Soleous
- Origin= Superior tibia, fibula and interosseous membrane.
- Insertion= As for gastrocnemius.
- Action= Plantar flexes foot; important muscle inposture,walking, running and dancing.
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Flexor digitorium longus
- Origin= posterior tibia.
- Insertion= Tendon runs behind medial malleolus and splits to insert into distal phalanges 2-5.
- Action= Plantar flexxes and inferts foot;
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Tibialis posterior
- Origin= Superior tibia and fibula and interosseous membrane.
- Insertion= Tendon passes behind medial malleolus and under arch foot inserts into tarsals and metatarsals 2-4.
- Action= foot inversion; plantar flexes foot.
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Flexor hallucis longus:
- Origin= Middle part of shaft of fibula, interosseous membrne.
- Insertion= Tendon runs under foot to distal phalanx of great toe.
- Action= Plantar flexion, foot invertion,flexes to at all joints.
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