大连医科大学：《组织胚胎学》课程教学课件（英文讲稿）12.Respiratory system

Respiratorysystem

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Olfactoryepitheliumconductingportion--- nasal cavity,NasalcavityNasopharynxnasopharynx, larynx,Oropharynxtrachea,bronchi,Larynxbronchiole,andterminalbronchiolesTrachearespiratoryportion-Bronchioles..-respiratorybronchioles,RespiratoryBronchibronchiolesLungalveolar ducts,Alveolarductsalveolarsac andTerminalalveoli.alveoliDiaphragm

conducting portion - - nasal cavity, nasopharynx, larynx, trachea, bronchi, bronchiole, and terminal bronchioles 2 respiratory portion - - respiratory bronchioles, alveolar ducts, alveolar sac and alveoli

I.Nasal Cavity1.external vestibuleSupportingcell2.internal nasalfossae学大Olfactorycell1)OlfactoryEpithelium:中* supporting cellsBasalcell* basal cells* olfactory cellsBowman'sglandAxons2) Lamina Propria:Bowman's gland3

I. Nasal Cavity 1.external vestibule 2.internal nasal fossae 1) Olfactory Epithelium: * supporting cells 3 * basal cells * olfactory cells 2) Lamina Propria: Bowman’s gland

TracheaH&EIl. Trachearespiratoryepitheliummucosalaminapropria1.Mucosaepithelium:5cellsubmucosatypeslaminapropria2. Submucosatracheal cartilage3.Adventitia

1. Mucosa epithelium: 5 cell II. Trachea 4 types lamina propria 2. Submucosa 3. Adventitia

sopletCILIPeudostratifiedColumnanEpitheliumRespiratoryEpitheliumBasementMembraneHiahMaonificationA. Mucosa:1.Epithelium:Pseudostratifiedciliatedcolumnarepitheliumwithmuchthickerbasementmembrane.5

5 A. Mucosa: 1. Epithelium: Pseudostratified ciliated columnar epithelium with much thicker basement membrane

杯状基细胞纤毛刷细胞小颗粒细胞刷细胞细胞细胞1.Ciliated cell:The cilia beat simultaneously towardslarynx2.Gobletcell:Thesecretioncoverstheepitheliumsurface3.Basalcell:Stemcell.Separatedfromtheepitheliumsurface4.Brushcell:Sensorycell.microvilli.basal surfaces connectedtonerveendings.5.Small granulecell:Containsmanysecretorygranules.6

6 1. Ciliated cell: The cilia beat simultaneously towards larynx. 2. Goblet cell: The secretion covers the epithelium surface. 3. Basal cell: Stem cell. Separated from the epithelium surface. 4. Brush cell: Sensory cell. microvilli. basal surfaces connected to nerve endings. 5. Small granule cell: Contains many secretory granules

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2.LaminapropriaLCTinwhichtheelasticfiberspredominate.B.SubmucosaLCT containingmixed glandsS

2. Lamina propria LCT in which the elastic fibers predominate. B. Submucosa LCT containing mixed glands 8

C. AdventitiaLCT containingHyaline16-20"C" shapedcartilage ringhyaline cartilageMucosawhose open endsis linked byfibroelasticligament andsmooth musclesProvides support.9

C. Adventitia LCT containing 16 -20 "C" shaped hyaline cartilage whose open ends 9 is linked by fibroelastic ligament and smooth muscles. Provides support

Il.Lungpaired organPulmonaryFocaanory.(cIntraalveolalocated inthoracic cavityblood)septumRenpiratoryDd1.General structureReapirmtory·capsule:visceral layerofpleura-serous(carryingnalodlarductbiood)membrane-CT+Alearelnstinmesothelium'parenchyma:allbranchesofbronchiandalveoliinterstitia:CT, BV, LV,NAveolar onpillnry networik10

II. Lung paired organ located in thoracic cavity 1. General structure •capsule: visceral layer of pleura- serous 10 membrane-CT + mesothelium •parenchyma: all branches of bronchi and alveoli •interstitia: CT, BV, LV, N