Pulmonary Histology Flashcards
What kind of epithelium lines the Nares?
Stratified squamous continuous with epidermis
What kind of epithelium is in the respiratory epithelium?
Pseudostratified ciliated columnar epithelium
What is found in the nares?
Sebaceous glands
Sudoriferous glands
Hair follicles
What 4 components are in the olfactory epithelium?
Sustentacular cells
Basal Cells
Olfactory Cells
Glands of Bowman
Sustentacular Cells
Support cells with pigment granules
Basal Cells
Stem cells which give rise to immature olfactory cells
Olfactory Cells
Bipolar neurons
Cilia with odor-specific receptors
Glands of Bowman
Secrete odorant binding protein
What are the tissues in the larynx?
Epithelium
Cartilage
Muscle
What are the 3 layers of the trachea?
Mucosa
Submucosa
Adventita
Describe the tissues of the larynx
The epithelium is respiratory epithelium and stratified squamous epithelium.
The larynx has both hyaline and elastic cartillage
The muscle in the larynx is skeletal
Describe the layers of the trachea
Mucosa has respiratory epithelium
Submucosa lined with many sero-mucous glands
Adventita has horseshoe shaped cartilage
Describe the general changes in in histology of the bronchial tree from larger intrapulmonary to respiratory bronchioles
As bronchi becomes smaller, decrease in height of epithelium, decrease in cartillage and glands and increase in elastic fibers and smooth muscles.
The histology of the intrapulmonary bronchi consist of
Mucosa with elastic fibers
Submucosa with loose CT, mixed glands and mucous glands
Adventitia with hyaline cartilage plates
Bronchiole histology
Epithelium with low columnar/low cuboidal
Cilia present
Smooth muscle present
Few alveolar outpocketings
