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Anatomy Test2
Respiratory system
17
Anatomy
Not Applicable
03/01/2004

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Cards

Term
what systems are part of the nose?
Definition
olfactory mucosa, respiratory mucosa, blood vessels, & conchae
Term
what does the olfactory mucosa do?
Definition
sense of smell(olfactory nerves)
Term
what does the repiratory mucosa do?
Definition
(ciliated epithelium)-mucus to trap bacteria, cilia to sweep particules to back of nasal cavity
Term
what do the blood vessels do?
Definition
warm & humidify air as it enters respiratory system
Term
what's the conchae?
Definition
enhance turbulence to further warm air, remove pathogens & dust
Term
what does the pharynx do
what are the parts of the pharynx?
Definition
connects nasal cavity to larynx & esophagus
nasopharynx, oropharynx, laryngopharynx
Term
what's the nasopharynx?
Definition
ciliated epithelium(only air passes through) contains pharyngeal tonsil(adenoids) & opening to middle ear
Term
what is oropharynx?
Definition
stratified epithelium(food & air) contains palatine tonsils
Term
what is the laryngopharynx?
Definition
stratified epithelium(food & air); larynx & esophagus diverge here
Term
what's the larynx and what are the parts?
Definition
connects laryngopharynx above & trachea below maintains open(patent) airway, voice production
epiglottis, thyroid cartilage, cricoid cartilage, vocal cords, glottis
Term
what's the epiglottis?
Definition
large cartilage, "covers" larynx during swallowing
Term
what do the thyroid & cricoid cartilage?
Definition
important for anchoring vocal cords
Term
what is the vocal cords?
Definition
elastic ligaments, vibrate w/ passage of air
Term
what's the glottis?
Definition
opening btwn vocal cords
Term
what's the trachea?
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
Term
what's the bronchial tree?
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
Term
what's the Alveolus?
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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