RESPIRATORY SYSTEM
➢ Respiratory passages
• Nasal cavity (concha nasi)
• Pharynx
• Larynx
• Trachea
• Bronchi
➢ Lung (pulmo)
Concha nasi
tunica mucosa
Concha nasi – sensory epithelium (mice)
Larynx
Larynx – plica vocalis
Larynx – plica ventricularis
Epiglottis
lingual side
laryngeal side
Epiglottis
laryngeal side lingual side
Trachea
tunica mucosa
adventitia
hyaline cartilage
Trachea - mucosa
mixed glands
Lung
Bronchus / terminal bronchiole
Terminal bronchiole / alveoli
Ductus alveolaris (alveolar duct)
Interalveolar septum, alveolar epithelium
granular pneumocyte
(type II cell)
capilllary
part of membranous pneumocyte (type I cell)
Development of respiratory system
Pharyngeal membrane
Respiratory
diverticulum
Stomach
Liver bud
Midgut
Hindgut
Cloacal membrane
Heart
copula
laryngeal orifice
pharyngeal
arches
Respiratory diverticulum
Esophagotracheal
ridge
Bronchopulmonary
buds
Foregut
Right upper lobe
Right
middle lobe
Left upper lobe
Right lower lobe
Left lower lobe
Human embryo (8th week)
Respiratory systemSlides
24. Concha nasi
25. Epiglottis (HE)
26. Larynx
27. Trachea
28. Epiglottis (orcein)
29. Pulmo
Atlas EM
Olfactory epithelium (23)
Bronchiolus (60)
Alveolar epithelium (61)
Development of lung (83)