22640185
Description
Flashcards by Evian Chai, updated more than 1 year ago
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Created by Evian Chai
over 4 years ago
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| Question | Answer |
| What type of respiratory epithelium lines Respiratory tract, trachea, bronchi, and larger bronchioles? | Pseudostratified, columnar, ciliated (cilia around size of nucleus) |
| What cells are in the respiratory epithelium other than columnar ciliated cells? | Goblet cells Neuroendocrine cells (serotonin, bombesin, calcitonin) Basal cells (stem cells) |
| What is the muco-cillary escalator? | cilia moves mucus to pharynx |
| Trachea epithelium type | Tall, columnar, pseudostratified, ciliated on top of lamina propria Cartilage rings |
| Primary bronchus epithelium type | Shorter columnar, pseudostratified, ciliated Less goblet cells Cartilage PLATES |
| Tertiary Bronchus epithelium type | Little pseudostratification/goblet cells SM controlled by PNS Little plates of cartilage |
| How far down the respiratory tract until theres no more cartilage? | At the bronchioles |
| Bronchioles epithelium type | Larger: pseudostratified, columnar, ciliated, goblet cells Smaller: cuboidal w cillia |
| Terminal/respiratory bronchioles epithelium type | Cuboidal ciliated cells Clara cells instead of goblet cells (surfactant, Cl-, stem cells) Respiratory: alveoli on walls |
| When alveolar macrophages remove inhaled particles, where do they go? | 1. Ciliated part of tract then pharynx 2. Lymph nodes via lymphatics |
| Alveolar pores do what? | Allow for equilibrating of pressure |
| Alveolar elastin does what? | Passive recoil Emphysema caused by destruction of elastin |
| Anatomical vs. Physiological vs alveolar dead space | Anatomical: conducting zone volume Alveolar: poorly perfused alveoli physiological: Anatomical+alveolar |
| Pulmonary arteries carry ... to lungs ... until transition of bronchi/bronchioles ... at bronchioles | Deoxygenated blood Elastic Muscular |
| Bronchial arteries carry .... to lungs+pleura Branches of .... ... type of artery | Oxygenated blood Thoracic aorta Muscular |
| Alveolar capillaries drain into ... Bronchial arteries drain into... Fluid from alveoli drains into | Pulmonary veins Azygous/hemizygous vein interstitial fluid-->small lymphatics at respiratory bronchioles-->larger lympathics-->hilar lymph nodes-->hilum |
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