Histological Description - Resp Structure It Lines Flashcards
Olfactory epithelium
Roof of the nasal cavity
Cuboidal ciliated epithelium and non-ciliated Clara cells
Terminal bronchioles
Pseudostratified ciliated columnar epithelium and goblet cells with hyaline cartilage rings and cartilage plates.
Main bronchi
Pseudostratified ciliated columnar epithelium with very few goblet cells. No cartilage. Lamina propria of smooth muscle and elastic and collagenous fibres.
Bronchioles
Non-keratinised stratified squamous epithelium.
Oropharynx
Keratinised stratified squamous epithelium.
Nasal cavity
Pseudostratified ciliated columnar epithelium and goblet cells. Incomplete cartilage rings. Basal lamina. Lamina propria of connective tissue and elastic fibres. Submucosa of loose connective tissue and subserous glands.
Trachea
Pseudostratified ciliated columnar epithelium and goblet cells covering cartilage and intrinsic muscles.
Larynx, excluding the vocal folds
Stratified squamous epithelium surrounded by respiratory epithelium.
Vocal folds
A mucus-producing cell found within respiratory epithelium.
Goblet cell
A non-ciliated cell found in terminal bronchioles. Acts as an immune modulator and stem cell and is able to produce surfactant.
Clara cell
A polygonal cell that releases surfactant from lamellar bodies within its cytoplasm.
Type 2 pneumocyte
A phagocytic cell that migrates up the bronchial tree and is eventually swallowed. Also known as a dust cell.
Alveolar macrophage
The majority cell type lining the terminal bronchioles.
Cuboidal epithelial cell
An immunologically active cell recruited to the lungs in the later stages of inflammation.
Lymphocyte
