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15 Cards in this Set
- Front
- Back
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The continuous exchange of oxygen and carbon dioxide between the atmosphere and body cells occurs through collective processes called _____
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Respiration
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What are the four functions of the respiratory system?
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Air passageway
Site for the exchange of oxygen and carbon dioxide detection of odors sound production |
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What structures are included in the upper respiratory tract?
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nose, nasal cavity, pharynx
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What structures are included in the lower respiratory tract?
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larynx, trachea, bronchi, bronchioles, alveolar ducts, and alveoli
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What structures are included in the conducting zone?
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passageways from the nose to the end of the terminal bronchioles
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What is the conducting zone?
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passageways that serve primarily to transport or conduct air
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passageways that serve primarily to transport or conduct air
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conducting zone
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What structures are included in the respiratory zone?
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structures that participate in gas exchange with the blood, including the respiratory bronchioles, alveolar ducts, and alveoli
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The respiratory passageway is exposed to the external environment and is lined internally by a _______ called _____
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mucous membrane; mucosa
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What is the mucous membrane composed of?
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an epithelium resting upon a basement membrane, and an underlying lamina propria composed of areolar connective tissue. It is ciliated in most portions of the respiratory tract conducting zone
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How does the epithelium become progressively thinner from the nasal cavity to the alveoli?
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it changes from pseudostratified ciliated columnar to simple ciliated columnar to simple cuboidal to simple squamous.
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Mucus is produced from the combined secretions of these cells:
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goblet cells, mucous and serous glands
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The amount of mucus produced daily is approximately ____ to ______ tablespoons
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1-7
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Mucous secretions contain _____, a protein that increases viscosity of mucus to more effectively trap inhaled dust.
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mucin
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What is mucin?
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a protein that increases viscosity of mucus to more effectively trap inhaled dust, dirt particles, microorganisms, and pollen.
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