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ANATOMY OF NOSE
- 1. ANATOMY OF NOSE Dr. Gangaprasad Waghmare MS
- 3. EXTERNAL NOSE • PROJECTING TRIANGULAR PYRAMID DIRECTED DOWNWARD • INFERIOR BASE PERFORATED BY TWO NOSTRILS • NOSTRILS ARE SEPARETED BY MEDIAN SEPTUM
- 4. • TIP OF NOSE- CARTILAGENOUS- THICK SKIN • BRIDGE OF NOSE –BONY-THIN SKIN • TIP- SKIN CONTAIN SEBACEOUS
- 6. ATTACHMENTS • ABOVE- FRONTAL BONE • LATERALLY-NASAL PROCESS OF MAXILLA • MEDIALLY-TO EACH OTHER • INFERIORLY-UPPER LATERAL CARTILAGE
- 8. EXTERNAL NOSE MUSCLES • 3 COMPRESSORS • 4 DILATORS SUPPLY • NERVE- FACIAL • ARTERIAL- MAXILLARY & OPTHALMIC
- 9. VESTIBULE • LINED BY HAIR BEARING SQUAMOUS EPITHELIUM • STARTS FROM ENTRANCE OF NASAL CAVITY TO MUCOCUTANEOUS JUNCTION
- 10. COLUMELLA • STRIP OF - SKIN, CONNECTIVE TISSUE & MEDIAL CRURI OF LOWER LATERAL CARTILAGE • SEPARATE THE TWO NOSTRILS
- 11. NASAL CAVITY • FORMED BY TWO NASAL FOSSAE. • EXTENDS FROM MUCOCUTANEOUS JUNCTION TO THE NASOPHARYNX. • LINED BY CILLIATED COLUMNAR EPITHELIUM/RESPIRATORY EPITHELIUM.
- 12. • CONTAINS GOBLET CELLS & SEROUS GLANDS • THICKEST & MOST VASCULAR OVER LOWER ASPECT OF SEPTUM • CONTRIBUTE TO FORMATION OF MUCUS
- 13. LATERAL WALL OF NOSE • 3 TURBINATES 1)SUPERIOR 2)MIDDLE 3)INFERIOR
- 16. SUPERIOR MEATUS- POSTERIOR 1/3rd OF LATERAL WALL MIDDLE MEATUS-POSTERIOR 2/3rd OF LATERAL WALL INFERIOR MEATUS- RUNS ALONG LENGTH OF LATERAL WALL
- 17. OLFACTORY CLEFT • SUPERIOR TURBINATE • CRIBRIFORM PLATE • CORRESPONDING AREA OF SEPTUM • LINED BY SPECIALIZED OLFACTORY EPITHELIUM
- 18. MIDDLE MEATUS-ANTERIOR GROUP OF SINUSES SUPERIOR MEATUS-POSTERIOR ETHAMOID SINUSES SPENOETHAMOIDAL RECESS- SPHENOID SINUSES
- 19. OMC • HIATUS SEMILUNARIS • BULLA ETHAMOIDALIS • UNCINATE PROCESS
- 21. NASAL SEPTUM • SEPARATE THE TWO NASAL CAVITY • ANTERIORLY-CARTILAGENOUS POSTERIORLY-BONY
- 22. DIVIDED INTO 5 AREAS 1)THE VESTIBULE 2)THE VALVE 3)THE ATTIC 4)TURBINATES 5)POSTERIOR CHOANAL AREA
- 23. ATTACHMENTS • INFERIORLY-MAXILLARY CREST • POSTERIORLY-VOMER • POSTEROSUPERIORLY- PERPENDICULAR PLATEOF ETHAMOID
- 25. ARTERIAL SUPPLY • EXTERNAL CAROTID ARTERY 1) MAXILLARY ARTERY 2)SPHENOPALATINE ARTERY- DIVIDES INTO THREE BRANCHES I.E TO 1)INFERIOR TUEBINATE 2)MIDDLE TURBINATE 3)NASOPALATINE
- 26. • INTERNAL CAROTID SYSTEM BY ANTERIOR ETHAMOIDAL ARTERY b/o OPTHALMIC ARTERY—SUPERIOR TURBINATE
- 27. KIESSELBACH’S PLEXUS • LITTLE’S AREA • ANTEROINFERIOR ASPECTS OF SEPTUM 1)LONG SPHENOPALATINE ARTERY 2)ANTERIOR ETHAMOIDAL ARTERY 3)GREATER PALATINE ARTERY 4)SUPERIOR LABIAL ARTERY
- 29. NERVE SUPPLY • SENSORY-TRIGEMINAL NERVE • SECRETORY-VIDIAN NERVE
- 30. PARANASAL SINUSES • AIR FILLED CAVITIES • LINED BY MUCOUS MEMBRANE • ARRANGE IN PAIRS • TWO GROUPS-ANTERIOR GROUP & POSTERIOR GROUP
- 33. MAXILLARY SINUS • APEX- MOLAR PROCESS R B • BASE- LATERAL WALL OF NOSE F • ROOF-FLOOR OF ORBIT A • FLOOR-ALVEOLAR PROCESS OF MAXILLA
- 34. • MEDIAL WALL- LATERAL WALL OF NASAL CAVITY • OSTIUM IS SITTED HIGH ON THE WALL • AT BIRTH IT IS RUDIMENTARY & GROWTH IS SLOW. • AVERAGE ADULT SIZE IS 35MM HIGH
- 35. FRONTAL SINUSES • ABOVE-SUPRAORBITAL MARGINE & ROOT OF NOSE • UNEVENLY DIVIDED BY A VERTICAL BONY SEPTUM, VARY IN SIZE • ANTERIOR WALL-ANTERIOR TABLE OF SKULL • POSTERIOR WALL-FRONTAL LOBES • INFERIORLY-FRONTONASAL DUCT • POSTERIORLY-SUPRAORBITAL EXTENSION
- 36. ETHMOID SINUSES • VARIABLE IN SIZE & NUMBER • RELATIVELY LARGE AT BIRTH • GROW EXTREMELY SLOW • LATERALLY –MEDIAL WALL OF ORBIT • MEDIALLY-NASAL CAVITY • LIE INFERIOR TO CRANIAL FOSSA AT ON EACH SIDE OF CRIBRIFORM PLATE
- 37. SPHENOID SINUSES • TRUE GROWTH OCCURS AT PUBERTY • UNEVENLY DIVIDED ,VARIES IN SIZE • LATERALLY- ICA,OPTIC NERVE • SUPERIORLY-FRONTAL LOBE & OLFACTORY APPT. • POSTERIORLY-PITUITARY FOSSA.