1. Respiratory

2. Olfactory A RE: Respiratory epithelium L: Lymphatic tissue
A: Bipolar neurons.
RE: Respiratory epithelium is ciliated pseudostratified columnar epithelium.
L: Lymphatic tissue located in the nasal epithelium.
A: Bipolar neurons.
Note: See page 20 for more information.

5. Larynx A: Pseudostratified ciliated columnar epithelium.B C
A: Pseudostratified ciliated columnar epithelium.
B: Submucosal glands.
C: Laryngeal cartilage.
Larynx
A: Pseudostratified ciliated columnar epithelium.
B: Submucosal glands.
C: Laryngeal cartilage.

6. A B C A: Ciliated pseudostratified columnar epithelium
B: Hyaline Cartilage
C: Stratified squamous epithelium C

7. C B A A: Hyaline Cartilage of the trachea B: Trachealis muscle
C: Esophageal epithelium

8. Trachea A: Tracheal gland B: Respiratory epithelium C: C– ring A B
A: Tracheal gland is simple multicellular tubular
alveolar and is located just beneath the epithelium in the submucosa.
B: Respiratory epithelium is ciliated pseudostratified columnar epithelium.
C: C– ring is made of hyaline cartilage that is DCCTRA

9. B A C A: Ciliated Pseudostratified Columnar epithelium
B: Subtracheal Glands
C: Hyaline Cartilage C

10. C B
A: Respiratory Epithelium
B: Blood vessle
C: Hyaline cartilage A

11. Bronchi A: Cartilaginous plates B: Respiratory epithelium C: Alveoli-
A: Cartilaginous plates are composed of hyaline cartilage. DCCTRA
B: Respiratory epithelium is ciliated
pseudostratified columnar epithelium.
C: Alveoli-simple squamous epithelium.

13. Bronchiole &Alveoli A: Terminal bronchiole B: Bronchiole C: AlveoliD
A: Terminal bronchiole
B: Bronchiole
C: Alveoli
D: Dust cells
A: Terminal bronchiole is lined with ciliated simple columnar epithelium Note: Terminal bronchioles end in alveolar spaces and you can see the thick epithelial layer start to grow thinner then disappear.
B: Bronchiole is lined with ciliated pseudostratified columnar epithelium.
C: Alveoli are lined by a thin simple squamous layer of epithelium.
D: Dust cells are alveolar macrophages or modified
simple squamous cell.

17. Alveoli