1. C-87 Nasal epithelium Respiratory segment –Pseudostratified epithelium (Respiratory epithelium) Ciliated cell, goblet cell, brush cell, small granule cell, basal cell –Lamina propia A complex set of capillary loops, mucous gland with serous demilune –Periosteum of the adjacent bone Olfactory segment

2. –Pseudostratified epilthelium (olfactory epithelium) Olfactory cell (bipolar neuron), supporting cell, brush cell, basal cell, much thicker than respiratory epithelium –Lamina propia Olfactory gland (bowman’s gland), myelinated nerve, unmyelianted nerve –Periosteum of the adjacent bone Compare : Olfactory epithelium Respiratory epithelium

3. Goblet cell Nerve Thicker or thiner ( epithelium ) …… Compare : Olfactory epithelium Respiratory epithelium

4. Olfactory epithelium Respiratory epithelium

5. Olfactory mucosa

6. A60 Nose, upper lip Vibrissae( hair follicles) Sebaceous glands Smooth muscle Mucous glands, serous glands Lots of blood vessels

7. A-100 Vocal cord Vocal fold, vocalis muscle, ventricle, ventricular fold (false vocal fold), Stratified squamous epithelium, stratified columnar epithelium, pseudostratified epithelium Mixed glands Hyaliane cartilage Vacalis muslce: skeletal muscle

8. vocalis muscle vocal fold ventricle ventricular fold

10. B-24 Mammal trachea, cs Mucosa –Respiratory epithelium (ciliated cell, goblet cell, etc), thick basement membrane –loose connective tissue Submucosa –Loose connective tissue, submucosal glands Cartilaginous layer, or muscular layer Adventitia

11. Trachea

13. B-25, 26, A-49 Lung Bronchi Mucosa –Respiratory epithelium –Lamina propia Muscularis: SmM Submucosa: glands Cartilage layer: hyaline Adventitia Bronchioles Epithelium pseudostratified epi., simple columnar epi., simple cuboidal epi. Layer of smooth muscle Lack of gland and cartilage plate

14. Pulmonary acini –Terminal bronchiole: without goblet cell simple cuboidal epi, ciliated cell, clara cell –Respiratory bronchiole: ciliated cell, clara cell, smooth muscle layer alveoli : gas exchange –Alveoli Alveolar duct Alveolar sac Alveoli –Type I : thin squamous cells, 95% alveolar surface –Type II : cuboidal cells, 5% –alveolar cell, capillary

15. Bronchioles Alveolar ducts & alvelar sacs

16. Bronchiole & respiratory bronchioles

17. Terminal brochioles Clara cells Respiratory bronchiole

18. Septal cell Type II Alvelus