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Anatomy of nose

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Anatomy of nose

  1. 1. ANATOMY OF NOSE pgmedicalworld.com
  2. 2. PARTS OF NOSE pgmedicalworld.com
  3. 3. External nose: • Osteocartilagenous framework • bony part • cartilaginous part • Nasal musculature pgmedicalworld.com
  4. 4. OSTEOCARTILAGINO US FRAMEWORK pgmedicalworld.com
  5. 5. Internal nose: • Vestibule of nose • Nasal cavity proper • Lateral wall • Medial wall • Roof • Floor • Choanae pgmedicalworld.com
  6. 6. LINING MEMBRANE OF INTERNAL NOSE • Vestibule:- − Lined by skin containing hair, hair follicles, sebaceous glands. • Olfactory region:- − Mucous membrane. • Respiratory region:- − Mucous membrane shows varible thickenings. pgmedicalworld.com
  7. 7. Lateral wall pgmedicalworld.com
  8. 8. Structures on lateral wall of nose pgmedicalworld.com
  9. 9. Medial wall • Columellar septum • Membranous septum • Septum proper pgmedicalworld.com
  10. 10. Roof •Anterior slope •Middle horizontal •Posterior slope •Ant. 3/4th formed by palatine process of the maxilla •Post. 1/4th formed by the palatine bone. Floor pgmedicalworld.com
  11. 11. Arterial supply pgmedicalworld.com
  12. 12. Venous drainage pgmedicalworld.com
  13. 13. Nerve supply pgmedicalworld.com
  14. 14. NERVE SUPPLY • Olfactory nerves • Nerves of common sensation • Ant. Ethmoidal nerve • Branches of sphenopalatine ganglion • Branches of infra-orbital nerve • Autonomic nerves • Parasympathetic-greater superficial petrosal nerve • Sympathetic-from T1 & T2 pgmedicalworld.com
  15. 15. LYMPHATIC DRAINAGE • From ext. nose & ant. Part of the nasal cavity : into submandibular nodes. • Rest of the nasal cavity : upper jugular nodes either directly or through the retropharyngeal nodes. pgmedicalworld.com
  16. 16. THANK YOU pgmedicalworld.com

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