Concept explainers
To determine: The effect of decreasing the blood flow due to lung tumor on Po2 (partial pressure) of oxygen and Pco2 (partial pressure of carbon dioxide) in the alveoli and interstitial fluid.
Introduction: Alveoli are the smallest sac-like structure present in the lungs. The exchange of gases takes place in alveoli. The pressure developed in alveoli by the gaseous exchange is called alveolar pressure.
To determine: The response of bronchioles to th lung tumor and whether the response of bronchioles can generate ventilation in the lungs.
Introduction: The air enters the nose during inhalation. After that, air moves to the nasal passage, pharynx, larynx, tracheas, bronchi, and bronchioles. After passing the bronchioles, the air enters the alveoli. The gaseous exchange takes place at alveoli
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Chapter 17 Solutions
Human Physiology: An Integrated Approach (7th Edition)
- How does hemoglobin help maintain the oxygen partial pressure gradient during gas transport in the body?arrow_forwardWhat drives oxygen from the air spaces in alveoli, through tissue fluid, and across capillary epithelium? What drives carbon dioxide in the opposite direction?arrow_forwardHow does the structure of alveoli maximize gas exchange?arrow_forward
- How do nerve impulses from the brain regulate ventilation of the lungs? How are the rate and depth of breathing controlled?arrow_forwardDue to its partial pressure gradient, carbon dioxide diffuses from cells into tissue fluid and into the ________; in the lungs, carbon dioxide diffuses into the ________. a. alveoli; bronchioles b. bloodstream; bronchioles c. alveoli; bloodstream d. bloodstream; alveoliarrow_forward
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