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Respiratory handout-Bronchi _ Subdivisions KEY

Respiratory handout-Bronchi _ Subdivisions KEY - cifistmf...

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Unformatted text preview: cifistmf - . Poo ._(alveoli) : ResPErdioifiy' ' Low cuboidal: few cilia: no -ob|et cells _ seminal-QC-r - bronchial'es" '- bronchio'les ' Alveolar ducts and ' SGCS I Keratinized stratified Squamous to nonkeratinized stratified squamous to respiratory Respiratory epithelium <3: nonstratified squamous over vocal ‘ cords Respiratory epithelium Gradual decrease in height, cilia, and goblet cells Simple columnar with cilia and. oblets Simple cuboidal, some cells ciliated, -oblet cells are rare Some low cuboidal: no cilia Mostly simple squamous (type I): some low cuboidal (t -e II) in septa Bowman's glands Mostly mucous glands (same serous) rigs] Bone/ cartilage Large, hyoline cartilage rings 6: small elastic cartilages C-shaped hyal ine cartilage rings - Complete rings in 1° bronchi: cartilage plates in smaller bronchi Skeletal in vocalis muscle and around cartilages Smooth mascle in trachealis muscle Several layers of circular smooth muscle Decreasing numbers of smooth muscle cells Few smooth muscle cells No muscle ...
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