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BACK OF LEG

BACK OF LEG. Dr. Rakesh Kumar Verma Assistant Professor Department of Anatomy KGMU UP Lucknow. INTRODUCTION. Synonyms: Flexor compartment/Posterior compartment/ Posterior Crural region/calf. BOUNDARIES.

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BACK OF LEG

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  1. BACK OF LEG Dr. Rakesh Kumar Verma Assistant Professor Department of Anatomy KGMU UP Lucknow

  2. INTRODUCTION Synonyms: Flexor compartment/Posterior compartment/ Posterior Crural region/calf

  3. BOUNDARIES Anterior-Posterior surface of: tibia, interosseous membrane, fibula, post. Intermuscular septum Posterior: Deep fascia of leg

  4. STRUCTURE (CONTENTS) Skin & Superficial fascia Cutaneous nerves & vessels Lymphatics Fibro fatty tissue Deep fascia Muscles, nerves & vessels

  5. CUTANEOUS NERVES Saphenous Nerve Post. division of medial cut. nerve of thigh Post. cut. nerve of thigh Sural Nerve Lateral cut. nerve of thigh Sural communicating nerve Medial calcaneal branches of tibial nerve

  6. CUTANEOUS VESSELES Great Saphenous Vein Small Saphenous Vein Small tributeries Lymhatics

  7. DEEP FASCIA • Also known as fascia cruris • Modifications: • Intermuscular septum • Flexor retinaculum

  8. FLEXOR RETINACULUM • Attachment: • Anterior-Post. Border & tip of medial malleolus • Postero-lateral- medial tubercle of calcaneum

  9. MUSCLES OF BACK OF LEG Gastrocnemius Soleus Plantaris Popliteus Flexor digitorum longus Flexor hallucis longus Tibialis posterior

  10. GASTROCNEMIUS

  11. SOLEUS & PLANTARIS

  12. POPLITEUS

  13. FLEXOR DIGITORUM LONGUS, FLEXOR HALLUCIS LONGUS & TIBIALIS POSTERIOR

  14. NERVE SUPPLY & ACTIONS Tibial nerve for all muscle Plantar flexion Inversion Maintained longitudinal arch Unlocking of knee by popliteus Flexion at knee joint

  15. POSTERIOR TIBIAL ARTERY It Is Large terminal branch of popliteal artery

  16. POSTERIOR TIBIAL ARTERY • Branches: • Peroneal artery • Muscular • Nutrient • Cicumflex fibular • Communicating • Malleolar • Calcaneal • Terminal-medial & lateral planter artery

  17. TIBIAL NERVE • Large terminal branch of sciatic nerve in popliteal fossa • Branches: • Muscular • Cutaneous • Articular • Terminal-medial & lateral planter nerve

  18. Posterior Tibial Vein Formation at the level of lower border of popliteus By joining of venae commitantes running along Ant. & post tibial artery Finally drain in to popliteal vein

  19. APPLIED ANATOMY Tennis leg Tendon of plantaris used as a graft Rupture of tendocalcaneus Ankle jerk Deep vein thrombosis Arterial insufficiency Varicose vein Tarsal tunnel syndrome

  20. QUESTION -1 • Unlocking of knee is done by: • A) Soleus • B) Plantaris • C) Popliteus • D) Gastrocnemius

  21. QUESTION -2 • All muscles help in plantar flexion except: • A) Tibialis Posterior • B) Gastrocnemius • C) Soleus • D) Popliteus

  22. QUESTION -3 • Which muscle is known as peripheral heart: • A) Soleus • B) Plantaris • C) Popliteus • D) Gastrocnemius

  23. QUESTION -4 • False statement about popliteus is: • A) Has intracapsular origin • B)Pulls the medial meniscus backwards and prevent it from being trapped at the beginning of flexion • C) Innervated by tibial nerve • D) Unlock the knee joint

  24. QUESTION -5 • Tibialis posterior is attached on the following bone except- • A) Talus • B) Navicular • C) 2nd metatarsal • D) 4th metatarsal

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