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Scalp

Scalp. Arteries of head & neck. Branches of subclavian & axillary arteries. Branches of subclavian artery Branches of axillary artery. Thyrocervical trunk. Dorsal scapular a. Internal mammary a. Superior thoracic a. Thoracoacromial a. Lateral thoracic a. Posterior circumflex humeral a.

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Scalp

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  1. Scalp

  2. Arteries of head & neck

  3. Branches of subclavian & axillary arteries Branches of subclavian artery Branches of axillary artery Thyrocervical trunk Dorsal scapular a. Internal mammary a. Superior thoracic a. Thoracoacromial a. Lateral thoracic a. Posterior circumflex humeral a. Anterior circumflex humeral a. Subscapular a.

  4. Vertebral artery Vertebral a.

  5. Branches of ECA 6- Posterior auricular a.: running along upper border of posterior belly of digastric m. Superficial temporal artery: the artery of anaesthist. Terminal branches Maxillary a. 5- Occipital a.: running along the lower border of posterior belly of digastric m. 4- Facial a. 3- Lingual a. External Carotid Artery 2- Ascending laryngeal a.: not shown 1- Superior thyroid a.: 1st branch of external carotid.

  6. Veins of head & neck

  7. Tributaries of EJV Maxillary v. (drains pterygoid plexus of v.) Superficial temporal v. Retromandibular (posterior facial) v.: traverses parotid gland Anterior division of retromandibular v. Posterior division of retromandibular v. Posterior auricular v. (anterior) facial v. External jugular v. Common facial v.

  8. Anterior facial vein Supratrochlear BVs Supraorbital BVs (anterior) facial v. External jugular v. pierces superficial fascia to join the internal jugular v.

  9. Internal jugular vein & subclavian vein Internal jugular v. (the continuation of sigmoid sinus) Subclavian v. SVC

  10. Carotid sheath

  11. Superficial relations of carotid sheath Posterior belly of digastric Ansa cervicalis Omohyoid

  12. Carotid sheath

  13. Internal carotid a. External carotid a. Internal jugular v Common carotid a.

  14. Styloglossus muscle Internal carotid artery Internal Jugular Vein External carotid artery Common carotid artery

  15. Muscles of head & neck

  16. Muscles of the head Epicranial aponeurosis Occipitalis m. (part of occipitofrontalis m.) Temporalis Orbicularis occuli m. Occipitalis m. (part of occipitofrontalis m.) Auricular muscles (superior, anterior & posterior) Orbicularis oris Buccinator Masseter m. Muscles of mastication (supplied by mandibular n.) Muscles of facial expression (supplied by facial n.)

  17. Muscles of mastication (1) Temporalis m. Masseter m.

  18. Muscles of mastication (2) Lateral pterygoid Medial pterygoid Buccinator

  19. Superior oblique muscle of the eye (suplied by trochlear n.)

  20. Constrictor muscles of the pharynx Superior constrictor Middle constrictor Inferior constrictor

  21. Styloid apparatus Styloglossus muscle Stylohyoid muscle Posterior belly of digastric muscle

  22. Scalenus anterior muscle (1) Scalenus anterior Scalenus anterior Upper trunk of brachial plexus Brachial plexus Subclavian v. Lt. innominate v. Subclavian a. Subclavian a.

  23. Scalenus anterior muscle (2) Scalenus anterior Scalenus anterior Phrenic n. Subclavian v. Subclavian v. Brachial plexus Subclavian a.

  24. Salivary glands

  25. Parotid gland Accessory lobe of parotid gland Parotid duct Submandibular gland

  26. Nerves of head & neck

  27. Vagus nerve Vagus n. Styloglossus m.

  28. Sympathetic chain Superior sympathetic ganglion Middle sympathetic ganglion Inferior symathetic ganglion (stellate)

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