Acute sinusitis
Acute sinusitis
Anatomy of the noseturbinate(meatus):superior,middle,inferiorSinus:maxillary,frontal,ethmoidal,sphenoid一膜沟中鼻甲R中鼻道中一鼻中隔下鼻甲一总鼻道下鼻道
Anatomy of the nose ➢ turbinate(meatus):superior,middle,inferior ➢ Sinus:maxillary,frontal,ethmoidal,sphenoid
paranasal sinusesThey are air-containing cavitiesin certain bones of skullfour pairs of paranasal sinuses
paranasal sinuses They are air-containing cavities in certain bones of skull four pairs of paranasal sinuses
Anterior group of sinuses: frontal sinuses,anteriorethmoid group sinuses,and the maxillary sinuses.theiropenings are situated in the middle meatus.Posterior group of sinuses: posterior ethmoid groupsinuses,which opens in the supeior meatus andsphenoid sinus,which opens in the sphenoethmoidrecess
Anterior group of sinuses: frontal sinuses,anterior ethmoid group sinuses,and the maxillary sinuses.their openings are situated in the middle meatus. Posterior group of sinuses: posterior ethmoid group sinuses,which opens in the supeior meatus and sphenoid sinus,which opens in the sphenoethmoid recess
Characteristic of paranasal sinusesSmall ostiumsMucous membrane is continuouswiththe nasal mucous membrane>Ostiums are adjacent to each otherEachparanasalsinuseshasitscharacteristic
Characteristic of paranasal sinuses ➢ Small ostiums ➢ Mucous membrane is continuous with the nasal mucous membrane ➢ Ostiums are adjacent to each other ➢ Each paranasal sinuses has its characteristic