Respiratory Flashcards
What specialised epithelium does the nasal cavity contain in its roof?
olfactory epithelium
What is the nasal cavity lined by?
Firstly, by keratinised stratified squamous epithelium, then non-keratinised stratified squamous epithelium, and finally respiratory epithelium
What is respiratory epithelium?
Pseudostratified ciliated columnar epithelium with goblet cells
What lines the oropharynx and the epiglottis?
Non-keratinised stratified squamous epithelium?
What lines the larynx?
respiratory epithelium
What are vocal cords lined with?
Stratified squamous epithelium
What is hyaline cartilage of the C shaped opening of the trachea spanned by?
fibroelastic tissue and smooth muscle
What lines the trachea?
respiratory epithelium
In the bronchi, what are rings of cartilage replaced by?
irregularly shaped cartilage plates
As you go down the respiratory tree, what does columnar epithelium change to?
cuboidal
Are there any cartilage plates in the terminal bronchioles?
no
What lines the terminal bronchioles?
cuboidal ciliated epithelium containing non ciliated Clara Cells that project above the level of adjacent ciliated cells
In alveoli, what is cuboidal epithelium replaced by?
discontinuous squamous type 1 alveolar cells
What is another term for alveolar cells?
pneumocytes
What are Type 1 alveolar cells?
simple squamous epithelium lining alveolar surfaces
