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Muscles and other essential Anatomy of the anterior leg

Muscles and other essential Anatomy of the anterior leg. LD and JG productions. Q: Why did the student fail cadaver class? A: She just couldn’t cut it…. Vascular Supply. Great saphenous vein Small saphenous vein Peroneal (fibular) vein Anterior tibial vein

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Muscles and other essential Anatomy of the anterior leg

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  1. Muscles and other essential Anatomy of the anterior leg LD and JG productions

  2. Q: Why did the student fail cadaver class? A: She just couldn’t cut it…

  3. Vascular Supply Great saphenous vein Small saphenous vein Peroneal (fibular) vein Anterior tibial vein Dorsal pedis vein Dorsal venous arch Dorsal metatarsal veins Anterior tibial artery *Anterior tibial recurrent branch *Medial & lateral malleolar br. *DorsalisPedisartery *Dorsalis metatarsal arteries Peroneal (fibular) artery

  4. Vascular Supply Great saphenous vein Small saphenous vein Peroneal (fibular) vein Anterior tibial artery *Anterior tibial recurrent branch *Medial & lateral malleolar br. *DorsalisPedis Artery Peroneal (fibular) artery

  5. Superficial Muscles Lateral Compartment Anterior Compartment • Tibialis anterior • Extensor hallicus longus • Extensor digitorum longus • Peroneus (fibularis) tertius • Peroneus (fibularis) longus • Peroneus (fibularis) brevis

  6. Tibialis Anterior O- Lateral condyle and lateral surface of upper half of tibia, interosseous membrane & crural fascia I- medial and plantar surface of 1st MT & the medial cuneiform Axn- dorsiflexion, inversion Innervation- Deep peroneal nerve- L4, L5 BV-Anterior tibial artery

  7. Extensor Hallicus Longus O- Medial surface of fibula, ant. interosseous membrane, & crural fascia I-Base of the great toe, dorsal surface Axn- extends big toe, assists in dorsiflexion and inversion Innervation- Deep peroneal nerve- L5, S1 BV- Anterior tibial artery

  8. Extensor digitorum longus O- Lateral condyle of the tibia, upper ¾ of fibula, & the interosseous membrane I- Distal phalanges of 4 lesser toes Axn- extends 4 lesser digits, assists in dorsiflexion and eversion Innervation- Deep peroneal nerve- L5, S1 BV- Anterior tibial artery

  9. Peroneus (Fibularis Tertius) O- distal 1/3 of anterior fibula, Interosseous membrane I- dorsal surface of base of the 5th MT Axn- dorsiflexion, assists in eversion Innervation-Deep peroneal nerve L5, S1 BV- Anterior tibial artery

  10. Peroneus (fibularis) longus O- Head & upper two thirds of Lateral surface of fibula I- Lateral aspect/base of the first MT; Medial cuneiform, plantar surface Axn- Eversion, weak plantar flexion Innervation- Superficial peroneal nerve L4, S1, S2 BV- Peroneal (fibular) artery

  11. Peroneus (fibularis) brevis O- Distal 2/3 lateral fibula, Intermuscular septum I- lateral surface & base of 5th MT Axn- Eversion; assists in plantar flexion Innervation-Superficial peroneal (fibular) nerve L4, S1, S2 BV- Peroneal artery

  12. Innervations Saphenous nerve – sensory branch of the femoral nerve that supplies cutaneous innervation to medial leg Superficial peroneal (fibular )nerve- divides into dorsal medial and intermediate branches Deep peroneal (fibular) nerve- divides into tarsal branch and cutaneous branch SuralNerve

  13. Insertions of the tendons

  14. Compartment syndrome

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