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Respiratory System Structures

Phase 1 - MA1255
Across
They produce sound when contracted; aka lower cords; 3 wds
Extend from the lateral walls of nasal cavity; turbinates 2 wds
Belongs to both the Digestive & Respiratory Systems; throat
It has 2 lobes; 2 wds
Opening between vocal cords
Microscopic hairs in the nasal cavity and bronchi; brush trapped debris to stomach
Gas exchange O2 & CO2 occurring in the alveoli; 2 wds
Distal end of the trachea; bifurcates into 2 main branches; 2 wds
Pressure inside the body is greater than the atmospheric pressure outside the body; air passively flows from area of high pressure to area of low pressure
Diaphragm contracts, thoracic cavity enlarges drawing O2-rich air to flow into alveoli
Produces sound of a person's voice; voicebox
Movement of air in and out of the lungs
Cone-shaped; contain connective tissue, bronchi, nerves, blood vessels, etc
Primary or main stem branches
It has 3 lobes; 2 wds
Down
Most carried in blood as bicarbonate ions; 2 wds
Gas exchange between RBC in capillaries & cells; 2 wds
Membranes surrounding the lungs
Rings of C-shaped cartilage and smooth muscle; connects the larynx to bronchi; windpipe
Smallest branches; these terminate in the alveoli
Binds to same site on RBC that O2 does thereby smothering RBC's; 2 wds
Functional cells of the lung; gas exchange occurs here
Closes off the larynx during swallowing
97% binds to iron on Hgb in RBC