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24 Cards in this Set
- Front
- Back
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Respiratory Epithelium is _ epithelium with _ cells.
It lines most portions of the _ pathway |
ciliated pseudostratified epithelium with goblet cells
Conducting pathway |
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There is a gradual transition to _ and finally to _ epithelium towards the end of the conducting pathway.
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simple columnar
simple cuboidal |
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_ epithelium is present in areas either exposed to rapid air flow or prone to abrasion (vocal folds or epiglottis)
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Nonkeratinized stratified squamous epithelium
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The olfactory epithelium is a thick _ epithelium, where sensory reception takes place.
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pseudostratified columnar
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Each olfactory cell is a _ neuron with an _ on its apical surface projecting slightly above the surface of surrounding cells.
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bipolar;
olfactory bulb |
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(T/F) Olfactory cilia are motile projections from the olfactory bulb that are though to generate nervous impulse in response to binding odiferous molecules.
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False
Most of the statement is true, except olfactory cilia are NONMOTILE |
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The most numerous cell type in the olfactory epithelium is _; what is their function?
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sustentacular cells;
to support and electrically insulate the olfactory cells |
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_ glands produce a serous secretion that traps and dissolves odiferous substances
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Bowman's (olfactory) glands
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The Nasopharynx is lined by _ epithelium
The oropharynx is lined by _ epithelium. |
Respiratory epithelium
Stratified squamous epithelium |
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The epiglottis has an _ core, with a _ covering.
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elastic cartilage core
with a stratified squamous epithelium |
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False vocal cords, or ventricular folds are covered by _ epithelium.
True Vocal Folds are covered by _ epithelium. |
respiratory epithelium
stratified squamous epithelium |
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The vocal ligament is located within the (true/false) vocal cords and consists of parallel _ bundles
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true
elastic fiber bundles |
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Starting from the lumen side, what are the 4 layers of the trachea?
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Mucosa
Submucosa Cartilaginous layer Adventitia |
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The trachealis muscle is situated in what layer of the trachea?
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Cartilaginous layer, it bridges the two ends of each ring
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In contrast to bronchi, the bronchial wall ...
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does not possess cartilage
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Terminal bronchioles represent what landmark?
These bronchioles are lined with _ epithelium |
the end of the conducting pathway
simple cuboidal epithelium |
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_ cells are specialized cells of the terminal bronchioles found interspersed among the cuboidal epithelial cells. They have no cilia, but do have _.
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Clara
microvilli |
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What are the proposed functions of a Clara cell? (4)
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- Secretion of GAGs
-Synthesis of enzymes that degrade inhaled toxins -Synthesis of surfactant like substance -Regeneration of bronchiole epithelium |
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What are the cell types found in the simple squamous epithelium lining the alveolar septum?
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type I pneumocytes
(most) type II pneumocytes (secretory cells with a lot of RER and Golgi) |
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Type I pneumocytes are _ epithelial cells, that have many _ vesicles.
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simple squamous epithelial cells
pinocytotic vesicles |
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Type II pneumocytes (great alveolar cells) are rather _ cells with a domed _ surface.
Their most notable ultrastructural feature is _. |
cuboidal cells, with a domed apical surface.
Lamellar bodies (which are membrane bound vesicles filled with surfactant) |
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Type II pneumocytes are regenerative, and can form _
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type I or type II pneumocytes
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Dust cell is the name given to _. They are found in both _ and _
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alveolar macrophages
In connective tissue of the alveolar septum and along the alveolar surface |
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The blood air barrier consists of three components. What are they?
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Alveolar epithelial cells; basement membrane; capillary endothelial cells
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