Respiratory System
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| This structure prevents food or water from entering the trachea. | Epiglottis
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| These are two triangular pieces of mostly hyaline cartilage located at the posterior and superior border of the cricoid cartilage and attached to the true vocal cords. | Arytenoids cartilage
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| What is the name of the passageway that ends at air sacs in the lungs? | Bronchiole
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| How is oxygen transported through the blood? | Bound to hemoglobin
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| What factors affect hemoglobins affinity for oxygen? | Ph of blood Your answer is incorrect, Partial pressure of the oxygen, Amount of oxygen available
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| Parts of the upper respiratory system? | Nose, Pharynx, Nasal meatuses
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| The nose connects with the throat through the | Pharynx
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| The portion of the pharynx that opens to the mouth is called the | Oropharynx
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| During swallowing, which structure rises? | Pharynx
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| What is pitch controlled by? | Tension of the vocal chords
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| This is located anterior to the esophagus and carries air to the bronchi. | Trachea
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| Which of the below tissues maintains open airways in the lower respiratory system? | Hyaline cartilage
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| Which of the below tissues provides the functions of the lining of the walls of the conducting organs? | Ciliated pseudostratified columnar epithelium with goblet cells
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| The point where the trachea divides into right and left primary bronchi is a ridge called | Carina
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| What is the primary gas exchange site within the lung? | Alveolus
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| Which of the following tissues forms the exchange surfaces of the alveolus? | Simple squamous epithelium
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| These are cells of the alveoli that produce surfactant. | Type II alveolar cells
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| Exhalation begins when | Inspiratory muscles relax
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| The conducting airways with the air that does not undergo respiratory exchange are known as the | Anatomic dead space
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| This is the sum of the residual and the expiratory reserve volume. | Functional residual capacity
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| Which is the dominant method of carbon dioxide transport? | Dissolved in plasma as bicarbonate ions
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| This is direction of diffusion of gases at the alveoli of the lungs. | Oxygen into blood, carbon dioxide out of blood
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| This is direction of diffusion of gases at capillaries near systemic cells. | Oxygen out of blood, carbon dioxide into blood
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| What happens when blood becomes more acidic? | Hemoglobin releases oxygen more easily
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