Pulmonary Flashcards
What kind of epithelium is associated with the respiratory?
Pseudostratified ciliated columnar epithelium
What are the components of the respiratory system?
Nose and olfactory mucosa, paranasal sinuses, pharynx, larynx, trachea, and lungs
What is Waldeyer’s ring?
Ring of lymphoid tissue around nasopharynx. Includes tonsils and adenoids
What are the 2 surfaces that make up the epiglottis?
Lingual and pharyngeal surface
The core of the epiglottis consists of what type of cartilage?
Elastic
What kind of glands are in the lamina of false vocal cords?
Seromucous glands
The true vocal cords are covered in what type of epithelium?
Stratified squamous epithelium
T/F: the true vocal cords contain seromucous glands as well
False. They lack those glands
What kind of muscle is in the larynx?
Skeletal
Bronchi lie outside the lung and are thus called
Extrapulmonary
Lobar bronchi are mostly intrapulmonary. T/F?
True
How many lobar bronchi in the right lung?
3
How many lobar bronchi in the left lung?
2
As the bronchi becomes smaller there is a __ in height of the epithelium, a __ in cartilage in glands, and an __ in the proportion of elastic fibers and smooth muscles
Decrease in height of epithelium, decrease in cartilage and glands, increase in proportion of elastic fibers and smooth muscles
Bronchioles are absent of cartilage and glands. T/F?
True
Alveolar ducts are continuations of respiratory __
Bronchioles
Alveolar sacs are each composed of several __
Aveoli
What separates the alveoli within alveolar sacs
Alveolar septa
What are the pores of Kohn?
Opening between adjacent alveoli
Nonciliated columnar cells have __ but no cilia
Microvilli
Goblet cells secrete?
Mucous
Neuroendocrine cells release_?
Catecholamines
Surfactant is secreted by what 2 cells?
Clara cells and type II alveolar cells
Type I pneumocytes characteristics?
Very thin cytoplasm, cover about 95% of the alveolar surface, tight junctions
Type II pneumocytes characteristics?
Rounded cells that bulge in alveolar lumen, cover about 5% of the alveolar surface, can replace type I pneumocytes, produces surfactant
Dust cell contain iron?
Yes
Dust cells aka…
Heart failure cells
What are the components of the blood-air barrier?
Thin capillary endothelium, thin epithelium of pneumocyte, and intervening basal lamina produced y both cell types
