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Histology
Respiratory System
24
Histology
Professional
11/15/2011

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Cards

Term
What are the conducting parts of the respiratory system?
Definition
nasal cavity, nasopharynx, larynx, trachea, bronchi, intrapulmonary bronchi, bronchioles
Term
What is the respiratory parts of the respiratory system?
Definition
Respiratory bronchioles, alveolar ducts, alveolar sacs, alveoli
Term
What are the functions of nasal mucosa?
Definition
filtration of air, warming, and humidification of air
Term
What is the respiratory mucous membrane epithelium?
Definition
pseudostratified columnar ciliated epithelium with goblet cells
Term
What are the three types of cells of the olfactory mucosa?
Definition
olfactory cells, supporting/sustentacular cells, basal cells
Term
What do you know about Waldeyer's ring?
Definition
Lymphoid tissue that forms a ring in the nasopharynx; used for immunity
Term
What is an enlargement of the pharyngeal tonsil called?
Definition
adenoids
Term
What are olfactory cells?
Definition
bipolar nerve cells; dendrites bathed in secretion of Bowman's glands
Term
How many cartilages form the larynx?
Definition
Nine (9)
Term
What type of cartilage is the epiglottis?
Definition
elastic
Term
What is the lining epithelium of the larynx?
Definition
pseudostratified columnar ciliated with goblet cells
Term
What is the covering epithelium of the vocal cords?
Definition
stratified squamous epithelium
Term
What is the level of bifurcation of the trachea?
Definition
T4/T5 IVD
Term
What is the type of cartilagenous rings of the trachea?
Definition
hyaline cartilage
Term
What is the lining epithelium of the trachea?
Definition
pseudostratified columnar ciliated with goblet cells
Term
What are the main differences between extrapulmonary and intrapulmonary bronchi?
Definition
Extrapulmonary has C-shaped cartilage, neruoendocrine cells (same as trachea); intrapulmonary have spirally arranged smooth muscles, plates of cartilage
Term
What are the differences between bronchioles and intrapulmonary bronchi?
Definition
Bronchioles have no cartilage, no glands, no goblet cells
Term
Where are Clara cells located?
Definition
between the lining epithelium in bronchioles
Term
What is the function of Clara cells?
Definition
prevent inflammation, lipoprotein, prevents luminal adhesion
Term
How do respiratory bronchioles differ from terminal bronchioles?
Definition
respiratory - exchange of gas
Term
What are the cells that line the alveoli?
Definition
Type I pneumocytes (simple squamous epithelium) & Type II pneumocytes (simple cuboidal: surfactant)
Term
What is the majority of cells found in alveoli?
Definition
type I pneumocytes
Term
Where is the phagocytic cell of the lung located?
Definition
Dust cell/ heart failure cell; found in alveolar lumen
Term
Blood air barrier is formed of?
Definition
type I pneumocytes; basement membrane; simple squamous epithelium of blood capillaries
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