Human Anatomy & Physiology
1st Edition
ISBN: 9780805382952
Author: Erin C. Amerman
Publisher: PEARSON
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Chapter 21.4, Problem 4QC
Summary Introduction
To review:
The influence of surface area and thickness of the respiratory membrane upon the efficiency of pulmonary gas exchange.
Introduction:
Pulmonary gas exchange occurs in the alveoli and the capillaries of the lungs. The process is also called external respiration. Certain factors, such as surface area and the thickness of the respiratory membrane, have the ability to influence the gas exchange in the lungs.
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Human Anatomy & Physiology
Ch. 21.1 - What are the main structures of the respiratory...Ch. 21.1 - 2. Is the larynx part of the upper or lower...Ch. 21.1 - Where are alveoli? What is their basic function?Ch. 21.1 - 4. List and define the four processes that make...Ch. 21.1 - 5. How does the respiratory system contribute to...Ch. 21.1 - List and describe four functions of the...Ch. 21.2 - Match the following terms with the correct...Ch. 21.2 - 2. Describe the external and internal structure...Ch. 21.2 - What happens to the glottis and the pitch of the...Ch. 21.2 - 4. What is the function of the tracheal mucosa?
Ch. 21.2 - How does the epithelium of the bronchial tree...Ch. 21.2 - Trace the pathway from the primary bronchi to the...Ch. 21.2 - 7. What structures make up the respiratory...Ch. 21.2 - Explain the structure of the pleural cavities.Ch. 21.3 - 3. What drives the movement of gases during...Ch. 21.3 - What does the intrapleural pressure prevent under...Ch. 21.3 - 5. How are inspiration and expiration achieved?
Ch. 21.3 - 6. What is airway resistance? What is the main...Ch. 21.3 - How does surfactant decrease surface tension?Ch. 21.3 - What drives the movement of gases?Ch. 21.3 - Prob. 7QCCh. 21.3 - Prob. 8QCCh. 21.4 - 1. How does the pressure gradient between two gas...Ch. 21.4 - Prob. 2QCCh. 21.4 - 3. What takes place during pulmonary gas...Ch. 21.4 - Prob. 4QCCh. 21.4 - Prob. 5QCCh. 21.4 - What are three factors that influence the...Ch. 21.5 - How is the majority of oxygen transported through...Ch. 21.5 - How do temperature, pH, PCO2, and BPG affect Hbs...Ch. 21.5 - 3. Why is the S shape of the oxygen-hemoglobin...Ch. 21.5 - What are the three ways in which the body...Ch. 21.5 - Prob. 5QCCh. 21.5 - Prob. 6QCCh. 21.6 - 1. Which steps of respiration rely on partial...Ch. 21.7 - 1. Which collection of neurons generates the...Ch. 21.7 - What are the functions of the dorsal and ventral...Ch. 21.7 - 3. Where are the central chemoreceptors located?...Ch. 21.7 - What do the central chemoreceptors trigger if...Ch. 21.7 - Prob. 5QCCh. 21.8 - 1. What are the differences between obstructive...Ch. 21.8 - 2. What are the three subtypes of COPD? What is...Ch. 21.8 - Prob. 3QCCh. 21 - Which of the following are functions of the...Ch. 21 - Prob. 2CYRCh. 21 - 3. Mark the following statements as true or false....Ch. 21 - Prob. 4CYRCh. 21 - 5. Fill in the blanks: The structures that vibrate...Ch. 21 - Prob. 6CYRCh. 21 - Prob. 7CYRCh. 21 - Prob. 8CYRCh. 21 - Match each term with the correct definition....Ch. 21 - Prob. 10CYRCh. 21 - Which of the following does not affect the...Ch. 21 - Prob. 12CYRCh. 21 - Fill in the blanks: When the alveolar PO2...Ch. 21 - Prob. 14CYRCh. 21 - Match the following terms with the correct...Ch. 21 - 16. Fill in the blanks: Hyperventilation causes...Ch. 21 - The basic rhythm for breathing is maintained by...Ch. 21 - Prob. 18CYRCh. 21 - Prob. 19CYRCh. 21 - Prob. 20CYRCh. 21 - Prob. 1CYUCh. 21 - Prob. 2CYUCh. 21 - Prob. 3CYUCh. 21 - Prob. 4CYUCh. 21 - 1. When a person hyperventilates, what happens to...Ch. 21 - Prob. 2AYKACh. 21 - Prob. 3AYKACh. 21 - Prob. 4AYKACh. 21 - 5. Mrs. Jordan is brought to the emergency room by...Ch. 21 - What happens to the metabolic rate of skeletal...
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- How does hemoglobin help maintain the oxygen partial pressure gradient during gas transport in the body?arrow_forwardHow does the structure of alveoli maximize gas exchange?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_forward
- A smoker develops damage to several alveoli that then can no longer function. How does this affect gas exchange?arrow_forwardWhich is the order of airflow during inhalation? a. nasal cavity, trachea, larynx, bronchi, bronchioles, alveoli b. nasal cavity, larynx, trachea, bronchi, bronchioles, alveoli c. nasal cavity, larynx, trachea, bronchioles, bronchi, alveoli d. nasal cavity, trachea, larynx, bronchi, bronchioles, alveoliarrow_forwardWhich of the following prevents the alveoli from collapsing? residual volume tidal volume expiratory reserve volume inspiratory reserve volumearrow_forward
- Explain what a partial pressure gradient is and how such gradients figure in gas exchange.arrow_forwardThe respiratory components of the medulla consist of which of the following? Dorsal respiratory group Apneustic center Ventral respiratory group Pneumotaxic center 1 only 2 only 1 and 3 only 2 and 4 onlyarrow_forward18. The bronchial arteries nourish the tracheobronchial tree down to, and including, which of the following? A. Respiratory bronchioles B. Segmental bronchi C. Terminal bronchioles D. Subsegmental bronchiarrow_forward
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