BLOCK RESPIRATORY XII.pptx

7/23/2019 BLOCK RESPIRATORY XII.pptx

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BLOCK XII: RESPIRATORY

SYSTEM


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Main components:-Epithelium-Lamina propria looseconnecti!e tissue" :

seromucous #lan$s%-Su&mucosa: smoothmuscles% cartila#e-tunica a$!entitia

colla#en ' elastic (&ers"

)ra$ual chan#es :$ecrease in o!erallthic*ness% epitheliumchan#es +rom columnar tos,uamous% loss o+ cilia '#o&let cells% loss o+cartila#e ' smooth

muscles% increase in


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epithelium

Seromucous gl.

cartilage Smoothmuscle

alveoli

Trachea RE + + + -

Bronchus RE + + + -

Bronchiolus

RE - - + -

Terminalbr.

Ciliatedsimple

columnar/

cuboidale.

- - + -

Respiratory br.

Simplecuboidal

e.

- - + +

Alveolarduct

Simplesuamou

s e.

- - + +

alveolus Simplesuamou

s e.

- - -


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Respirator- epithelium:pseu$ostrati(e$ columnar epithelium.ith cilia Ciliate$ columnar cells

)ol&let cells

Brush cells

Small #ranule cells Basal cells


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RES!"RAT#R$ E!"T%E&"'(


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SECT"#) #* TRAC%EA RES!"RAT#R$


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SECT"#) #* TRAC%EA RES!"RAT#R$E!"T%E&"'(


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RES!"RAT#R$ E!"T%E&"'(


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RESPIRATORY EPIT/ELI0M


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TRAC%EA


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C


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TRAC%EA

TRAC%EA


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TRAC%EA

TRAC%EA


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TRAC%EA


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&loo$1air &arrier:

1 Sur+ace linin#

an$ c-toplasm o+the al!eolar cells%1 3use$ &asallaminae o+ theclosel- appose$

al!eolar cells an$capillar-en$othelial cells%1 C-toplasm o+ the

en$othelial cells

BLOCK RESPIRATORY XII.pptx

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