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Respiratory system(Anatomy)

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nose to trachea anatomy

Respiratory system(Anatomy)

  1. 1. ANATOMY PRESENTATION LEADER : SEERAT FATIMA SUBSCRIBER : OMAR NAZIR DEFENDER:- FARYAL KANWAL JAVERIA QASIN
  2. 2. ANATOMY OF NOSE EXTERNAL NOSE NASAL CAVITY PARANASAL SINUSES PHARYNX TRACHEA Nose
  3. 3. THE EXTERNAL NOSE THE EXTERNAL NOSE IS TRIANGULAR-SHAPEDPROJECTION IN THE CENTEROF THE FACE, CONSISTS OF OSTEO-CARTILAGINOUS FRAMEWORKCOVEREDBY MUSCLES ANDSKIN.
  4. 4. FEATURES OF EXTERNAL NOSE Nasal dorsum Root of nose Nasal bridge Nasolabial fold Columella Anterior narisAla of nose Apex of nose
  5. 5. VEINS OF EXTERNAL NOSEVEINS OF EXTERNAL NOSE Cavernou s sinus Facial v. Superior & inferior ophthalmic v.
  6. 6. NASAL CAVITY NASAL VESTIBULE NASAL CAVITY PROPER Nasal vestibule is the anterior and inferior part of nasal cavity. It is lined by skin and contains sebaceous glands, hair follicles and hair(vibrissae) easy to infection. The remaining area of nose is the nasal cavity proper which contains many proper structures like roof , medial wall , conchae and meatus etc
  7. 7. NASAL CAVITY PROPER • THE ROOF . ANTERIOR SLOPING PART OF THE ROOF IS FORMED BY NASAL BONES; POSTERIOR SLOPING PART BY THE BODY OF SPHENOID BONE;AND THE MIDDLE HORIZONTAL PART, BY THE CRIBRIFORM PLATE OF ETHMOID.
  8. 8. NASAL CAVITY PROPER • THE FLOOR . THE FLOOR OF THE NOSE IS FORMED BY THE PALATAL PROCESS OF THE MAXILLA AND THE HORIZONTAL PROCESS OF THE PALATE BONES.
  9. 9. NASAL CAVITY PROPER • MEDIAL WALL. NASAL SEPTUM. vomer
  10. 10. NASAL CAVITY PROPER • LATERIOR WALL. The lateral wall is marked by three scroll-like bone projections called turbinates or conchae.Below and lateral to each turbinate is the corresponding meatus.
  11. 11. LATERIOR WALL OF NASAL CAVITY
  12. 12. NASAL CAVITY Laterior wall. Nasolacrimal duct opens in the anterior part of inferior meatus. The anterior group of sinuses (frontal,marxillary and anterior ethmoidal sinuses) open to the infundibulum in middle meatus. Posterior ethmoidal sinuses open into superior meatus. The openning of sphenoid sinus situate is phenoethmoidal recess lies above the superior turbinate.
  13. 13. NASAL CAVITIES: MICROANATOMY MUCOSAL LINING  RESPIRATORY EPITHELIUM  COLUMNAR  GOBLET CELLS  MUCUS BLANKET  CILIA  OLFACTORY EPITHELIUM  SMALL AREA NEAR ROOF ciliated pseudostratified columnar epithelium
  14. 14. NERVE INNERVATION OF THE NOSE • OLFACTORY NERVES (CRANIAL NERVE I) • TRIGEMINAL NERVE (CRANIAL NERVE V) • PARASYMPATHETICS • SYMPATHETICS
  15. 15. PARANASAL SINUSES THE SINUSES ARE AIR-FILLED BONY CAVITIES LOCATED IN THE FACE AND SKULL ADJACENT TO THE NOSE.
  16. 16. PARANASAL SINUSES • MAXILLARY SINUS • ETHMOID SINUS • FRONTAL SINUS • SPHENOID SINUS
  17. 17. PHARYNX Air passes from nasal cavity, across internal nares into nasopharynx, past oropharynx & through laryngopharynx to larynx
  18. 18. PHARYNX Nasopharynx lined with PSCC epithelium, but oro & laryngopharynx lined with stratified squamous epithelium because they are also part of digestive system.
  19. 19. NASOPHARYNX • THE UPPER PORTION OF THE PHARYNX, THE NASOPHARYNX, EXTENDSFROM THE BASE OF THE SKULL TO THE UPPER SURFACE OF THE SOFT PALATE. • IT INCLUDESTHE SPACE BETWEEN THE INTERNAL NARES AND THE SOFT PALATEAND LIESABOVE THE ORAL CAVITY. • THE ADENOIDS, ALSO KNOWN ASTHE PHARYNGEAL TONSILS, ARE LYMPHOID TISSUE STRUCTURESLOCATED IN THE POSTERIOR WALL OF THE NASOPHARYNX.
  20. 20. OROPHARYNX • THE OROPHARYNX LIESBEHIND THE ORAL CAVITY, EXTENDING FROM THE UVULA TO THE LEVEL OF THE HYOID BONE. IT OPENS ANTERIORLY, THROUGH THE ISTHMUS FAUCIUM, INTO THE MOUTH, WHILE IN ITS LATERAL WALL, BETWEEN THE PALATOGLOSSAL ARCH AND THE PALATOPHARYNGEAL ARCH, IS THE PALATINE TONSIL.
  21. 21. OROPHARYNX • THEANTERIOR WALL CONSISTSOF THE BASE OF THE TONGUE AND THE EPIGLOTTIC VALLECULA. • THE LATERAL WALL ISMADE UPOF THE TONSIL, TONSILLAR FOSSA, AND TONSILLAR (FAUCIAL) PILLARS • THE SUPERIOR WALL CONSISTSOF THE INFERIOR SURFACE OF THE SOFT PALATEAND THE UVULA
  22. 22. LARYNGOPHARYNX • THE LARYNGOPHARYNX EXTENDSFROM THE SUPERIOR BORDER OF THE EPIGLOTTISTO THE INFERIOR BORDER OF THE CRICOID CARTILAGE, WHERE IT BECOMES CONTINUOUSWITH THE ESOPHAGUS. • ITSANTERIORASPECT HASTHE INLET OF THE LARYNX AND THE POSTERIORASPECTSOF THEARYTENOID AND CRICOID CARTILAGES.
  23. 23. TRACHEA  Lined with respiratory epithelium  “C”-shaped piecesof hyalinecartilage protecting airway while allowing for swallowing  Trachealismuscle (smooth muscle) runs acrossposterior wall of tracheaconnecting ends of tracheal cartilage

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