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POSTERIOR TRIANGLE

POSTERIOR TRIANGLE. BOUNDARIES SUBDIVISIONS CONTENTS. BOUNDARIES. ROOF. ROOF. EXTERNAL JUGULAR VEIN. Situated in the roof of the posterior triangle between platysma and investing layer of deep cervical fasciae. Termination: it terminates behind the clavicle into the subclavian vein.

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POSTERIOR TRIANGLE

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  1. POSTERIOR TRIANGLE BOUNDARIES SUBDIVISIONS CONTENTS

  2. BOUNDARIES

  3. ROOF

  4. ROOF

  5. EXTERNAL JUGULAR VEIN • Situated in the roof of the posterior triangle between platysma and investing layer of deep cervical fasciae.

  6. Termination: it terminates behind the clavicle into the subclavian vein. Relations: superficial- skin, superficial fasciae and Platysma. Deep relations: investing layer. Valves- has two valves one at the termination another at 4cms above the terminations. Between the valves dilatations called sinus of external jugular vein.

  7. Applied anatomy Venous access JVP/ Jugular venous pressure Venous air embolism

  8. FLOOR

  9. SUBDIVISIONS

  10. Contents of occipital triangle • SPINAL PART OF ACCESSORY NERVE. • PROPRIOCEPTIVE BRANCHES OF C3 & C4 NERVES. • DORSAL SCAPULAR NERVE. • CUTANEOUS BRANCHES OF CERVICAL PLEXUS. • UPPER TRUNK OF BRACHIAL PLEXUS. • SUPERFICIAL CERVICAL ARTERY. • OCCIPITAL ARTERY, OCCASIONALLY.

  11. Subclavian triangle contents • Subclavian Artery – 3rd Part. • Subclavian Vein. • External Jugular Vein – Terminal Part. • Brachial Plexus – Trunks. • Dorsal Scapular Nerve. • Long Thoracic Nerve. • Nerve To Subclavius. • Suprascapular Nerve. • Superficial Cervical, Suprascapular, Dorsal Scapular Arteries. • Supraclavicular Lymph Nodes.

  12. CONTENTS

  13. SUBCLAVIAN VESSELS

  14. APPLIED ANATOMY ERB’s Point. Erb Duchenne paralysis. Injury to long thoracic nerve/winging of scapula Virchow’s Nodes /signal nodes Injury to SPINAL ACCESSORY Nerve/Torticollis Adson,s test

  15. Virchow’s Nodes /signal nodes

  16. Nerve point/ cervical nerve block

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