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32 Cards in this Set
- Front
- Back
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Respiration |
Ventilation, Gas exchange, oxygen utilization |
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Conducting division |
Nose, pharynx, larynx, trachea, bronchi, bronchioles, terminal bronchioles |
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Respiratory division |
Respiratory bronchioles, alveolar, alveolar ducts, alveoli |
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Nasal cavity Nasal Septum Nasal Fossa |
Internal Divided by Each half |
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Nostrils |
Naris |
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Nasal cavity functions |
warm, moisten, cleanse air smell resonating chamber for phonation |
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Nasal conchae |
bony scrolls along walls of atrium (sup, mid, inf) |
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Nasolacrimal duct |
Tear duct (drains to inferior meatus) |
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Pharynx |
Connect nasal/oral cavities to larynx Air--> larynx Food--> gut |
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Nasopharynx |
Skull--> soft palate conducts air to larynx pharyngeal tonsils/uvula |
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Oropharynx |
soft palate--> epiglottis post 1/3 of tongue, lingual tonsils, palatine tonsils Vol/invol swallowing |
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Laryngopharynx |
epiglottis--> cricoid cartilage leads to larynx/esophagus |
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Larynx |
Entrance to lower respiratory system |
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Larynx functions |
Prevent food/fluid from entering LRS Permis passage of air while breathing Helps produce sound |
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Unpaired cartilage of larynx |
thyroid (ant attachment for vocal cords) epiglottis(closing glottis) cricoid (connect to trachea) |
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Windpipe |
trachea |
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Shape of trachea |
Rigid tube, C shaped rings Flexible/lumen always open |
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What does trachea branch into? |
R/L primary bronchi |
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Right primary bronchus |
Vertical 2.5 cm wider, shorter foreign |
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Left primary bronchus |
5 cm narrower, longer |
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Bronchial tree |
primary bronchi--> secondary bronchi--> segmental bronchi--> bronchioles |
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Bronchioles |
Smooth muscles to dilate/constrict |
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Asthma |
Spasm of smooth muscle in bronchioles |
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Alveoli |
tiny sacs in lungs for gas exchange |
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Mediastinum |
central compartment of thoracic cavity |
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Pathway of air |
Nasal cavity--> pharynx--> trachea--> primary bronchi--> |
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Hilum |
in mediastinal surface where pulmonary vessel, nerves, bronchi enter lungs |
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Pluerae |
pair of serous membranes lining thorax/lungs Visceral (inner) Parietal (outer) |
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Pleural cavity |
Space between pleura Contains pleural fluid, providing lube as lungs expand/contract |
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Tidal volume |
Volume moved in/out of lungs during quiet breathing (500 cc) |
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Residual volume |
Volume remains in lungs at all times (1500 cc) |
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Total lung capacity |
Total volume of air lungs can hold (6000 cc) |
