58014

Figuro 2.1 9

Norrn.il bronchut And chronic bronchitU

Morm.il bronchui

Columnar ciliated respiratory eplthehum

Chronic bronchitłł

Smooth

musclo

Ro*d mdox >• 0.5

Platos of cartklnge

Incroascd mucus

Mucosal

connectłve

tisiuo

Goblet coli hyperplasia and łquamouł mocaplasia

Oegencratk>r of cartłlage

Submucosal bronchial gland hyportrophy

musclo

hyportrophy

Inflammation wkth fibrosis (macrophagcs. CD8* T colls. fibrobłascs/myofibroblasts and •ncrcasod oxtracolltilar matr*x)

bronchkal gl.ind

Roid mdox: (hicknoss of glnnd l.iyor to thicknoss o f wali botwoon baso of ©pithohum and imcrnal cartilago 0.3