Histology of the Respiratory Tract Flashcards
What are the nature of the cells lining the respiratory tract fundamental to?
Filtering and conditioning the air which we inhale.
What do all tubular organs of the body conform to?
A particular layered architecture, as modified for the particular functions that they perform.
What are the structure of the extra-pulmonary tubes from lumen to outside?
Mucosa (epithelium, lamina propria)
Submucosa
Cartilage
Adventitia
What is the mucosa of extra pulmonary tubes composed of?
Epithelium Lamina propria (thin loose connective tissue)
What is the lamina propria?
Thin loose connective tissue found in the mucosa of extrapulmonary tubes.
What type of cartilage is found in the respiratory tract?
Hyaline cartilage.
What is the connective tissue predominating in the lungs and alveoli?
Elastin
Collagen
What type of muscle fibre is found in the respiratory tract?
Smooth muscle
Where do elastin and collagen predominate in the respiratory tract?
Lungs and alveoli.
What are the 2 types of cell found in the epithelial layer?
Goblet cells
Ciliated cells
What layer are goblet cells and ciliated cells found?
Epithelial layer.
What is the typeof respiratory epithelium called?
Pseudostratified ciliated columnar epithelium.
What are the small, hair-like structures projecting from the epithelial cell surface into the lumen called?
Cilia.
What are cilia?
Small, hair-like structures projecting from the epithelial cell surface into the lumen.
What is the type of muscle found in the respiratory tract called?
Smooth muscle.
