Term
| what systems are part of the nose? |
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Definition
| olfactory mucosa, respiratory mucosa, blood vessels, & conchae |
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Term
| what does the olfactory mucosa do? |
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Definition
| sense of smell(olfactory nerves) |
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Term
| what does the repiratory mucosa do? |
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Definition
| (ciliated epithelium)-mucus to trap bacteria, cilia to sweep particules to back of nasal cavity |
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Term
| what do the blood vessels do? |
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Definition
| warm & humidify air as it enters respiratory system |
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Term
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Definition
| enhance turbulence to further warm air, remove pathogens & dust |
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Term
what does the pharynx do
what are the parts of the pharynx? |
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Definition
connects nasal cavity to larynx & esophagus
nasopharynx, oropharynx, laryngopharynx |
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Term
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Definition
| ciliated epithelium(only air passes through) contains pharyngeal tonsil(adenoids) & opening to middle ear |
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Term
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Definition
| stratified epithelium(food & air) contains palatine tonsils |
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Term
| what is the laryngopharynx? |
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Definition
| stratified epithelium(food & air); larynx & esophagus diverge here |
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Term
| what's the larynx and what are the parts? |
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Definition
connects laryngopharynx above & trachea below maintains open(patent) airway, voice production
epiglottis, thyroid cartilage, cricoid cartilage, vocal cords, glottis |
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Term
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Definition
| large cartilage, "covers" larynx during swallowing |
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Term
| what do the thyroid & cricoid cartilage? |
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Definition
| important for anchoring vocal cords |
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Term
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Definition
| elastic ligaments, vibrate w/ passage of air |
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Term
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Definition
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Term
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Definition
| has 16-20 cartilage rings, incomplete posteriorly to allow for expansion of esophagus ciliated epithelium w/ mucus production, divides into r. & l. primary bronchi |
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Term
| what's the bronchial tree? |
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Definition
*primary bronchi branch repeated, become bronchioles when diameter<1mm
*bronchioles contain smooth muscle & elastin fibers in walls, but no cartilage rings site of constriction & dilation(asthma)
*bronchioles end in clusters of alveoli |
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Term
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Definition
*walls are single layer of squamous cells, pores connect adjacent alveoli
*special cells produce surfactant to prevent collapse
*macrophages clear debris(no mucus production)
*surrounded by pulmonary capillaries for gas exchange |
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