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lower atmospheric pressures make it harder to breathe at high altitude

Human Biology (MindTap Course List)

11th Edition

ISBN:9781305112100

Author:Cecie Starr, Beverly McMillan

Publisher:Cecie Starr, Beverly McMillan

Chapter10: The Respiratory System

Section: Chapter Questions

Problem 1SQ: A partial pressure gradient of oxygen exists between ________. a. air and lungs b. lungs and...

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Figure 16.9 Which of the following statements about the human respiratory system is false? a. When we breathe in, air travels from the pharynx to the trachea. b. The bronchioles branch into bronchi. c. Alveolar ducts connect to alveolar sacs. d. Gas exchange between the lungs and blood takes place in the alveolus.
The ________ is an airway that connects the nose and mouth with the ________. a. oral cavity; larynx b. pharynx; trachea c. trachea; pharynx d. pharynx; larynx
When you sneeze, abdominal muscles abruptly contract, pushing your diaphragm upward. Given the discussion of the respiratory cycle in Section 10.4, why does this change expel air out your nose?
A partial pressure gradient of oxygen exists between ________. a. air and lungs b. lungs and metabolically active tissues c. air at sea level and air at high altitudes d. all of the above
Describe the function of these terms and describe where they are located: main bronchus, trachea, alveoli.
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The respiratory system_______. a. provides body tissues with oxygen b. provides body tissues with oxygen and carbon dioxide c. establishes how many breaths are taken per minute d. provides the body with carbon dioxide
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We inhale oxygen when we breathe and exhale carbon dioxide. What is the oxygen used for and where does the carbon dioxide come from?
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In the diagram below, label the parts of the respiratory system and the structures that enclose some of its parts