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Respiratory System (Respiratory tract (Upper (-Para nasal sinuses
-nsal…
Respiratory System
Respiratory tract
Upper
-Para nasal sinuses
-nsal cavity
-soft plate
-hard plate
-nostril
oral cavity
-tongue
-pharynx
-larynx
-Vocal chords
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lung differences
right
-Short, wide with no cardiac notch
-Has 3 lobes separated by 2 fissures
-10 bronchopulmonary segments;
3 in upper, 2 in middle, and 5 in lower lobe
left
-long, narrow with cardiac notch
-has 2 lobes separated by one fissure
-8 bronchopulmonary segments;
2 in upper, 2 in lingular, and 4 in lower lobe
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breathing mechanism
Inspiration
- Air is in taken through the oral or nasal cavity
- travels through trachea and into the left and right lungs causing contraction and a stretch in the lungs, rib cage, and diaphragm
expiration
- inspiratory muscles relax
-relaxation in lungs, rib cage and diaphragm
-air goes out into the trachea and out through nasal or oral cavity
Major Functions
-Inhaling and exhaling
-Exchange of oxygen and carbon dioxide between the lungs and blood stream
-Exchange of O2 and CO2 between tissues and blood stream
-Creating vibrations or sound
-Sense of smell
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