Respiratory

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.

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.

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

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

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

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

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

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.

Bronchiole &Alveoli A: Terminal bronchiole B: Bronchiole C: Alveoli D 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.

Alveoli