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    Add as FriendNasal mucociliary clearance ppt by Dr Manas

    by: Dr Manas Ranjan Rout

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    1 : Dr Manas NASAL MUCOCILIARY CLEARANCE
    2 : Nasal mucociliary clearance is a defense mechanism of nasal cavity Depends upon the Nasal Secretion Ciliary movement
    3 : Functions of the Nose Respiration Air conditioning (filtration,temp,humidity) Protection of lower airways Vocal resonance Nasal reflex function Olfaction
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    5 : Nasal Secretions Contains mainly two types of components Glycoproteins Water with its proteins and ions
    6 : Serous gland Mucinous gland
    7 : Compositions of nasal secretion Waters and ions Glycoproteins –Sialomucins,Sulfomucins Enzymes –Lysozymes,Lactoferrin Circulatory protein – ?2 macrogobulin,c-reactive protein Immunoglobulins– IgA,E,G,M,D Cells– Surface epithelium,Basophil,Eosinophil, Leucocytes
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    9 : Cilia Found in the surface of the cells in the respiratory tract Propels the mucous backward towards the nasopharynx In each cell there are around 200 cilias Length of cilia -- 5µm
    10 : Ultrastructure of cilia
    11 : Base of the Cilia
    12 : Ciliary action Beat frequency of cilia – 10-20 Hz (Avg –14Hz) Frequency is constant between 32-40 degree Two phases in ciliary movement ie. Rapid propulsive phase and slow recovery phase
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