Principles of Anatomy and Physiology
15th Edition
ISBN: 9781119329398
Author: Gerard J Tortora, Bryan Derrickson
Publisher: John Wiley & Sons Inc
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Chapter 23, Problem 10CP
Summary Introduction
To review:
The parts of lungs: lobe, lobule, a medial surface, hilum, base, apex, cardiac notch, costal surface, and root.
Introduction:
Lungs are the main organs of the respiratory system. Exchange of gases occurs in this organ and it floats in the thoracic cavity. Pleural membrane protects the lungs from injury. Pleural cavity is present between the two pleurae.
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Chapter 23 Solutions
Principles of Anatomy and Physiology
Ch. 23 - What are the three basic steps involved in...Ch. 23 - What are the components of the respiratory system?Ch. 23 - Why is the respiratory zone important?Ch. 23 - 4. Compare the structure and functions of the...Ch. 23 - 5. What are the functions of the three...Ch. 23 - Prob. 6CPCh. 23 - Prob. 7CPCh. 23 - 8. Describe the structure of the bronchial tree.
Ch. 23 - Prob. 9CPCh. 23 - Prob. 10CP
Ch. 23 - Prob. 11CPCh. 23 - Prob. 12CPCh. 23 - Prob. 13CPCh. 23 - Prob. 14CPCh. 23 - Describe how alveolar surface tension, compliance,...Ch. 23 - Demonstrate the various types of modified...Ch. 23 - Prob. 17CPCh. 23 - What is the difference between a lung volume and a...Ch. 23 - How is minute ventilation calculated?Ch. 23 - Prob. 20CPCh. 23 - Prob. 21CPCh. 23 - How does the partial pressure of oxygen change as...Ch. 23 - What are the diffusion paths of oxygen and carbon...Ch. 23 - 24. What factors affect the rate of diffusion of...Ch. 23 - Prob. 25CPCh. 23 - What is the relationship between hemoglobin and P...Ch. 23 - Prob. 27CPCh. 23 - Prob. 28CPCh. 23 - How is the pontine respiratory group related to...Ch. 23 - Prob. 30CPCh. 23 - How does exercise affect the DRG?Ch. 23 - What structures develop from the laryngotracheal...Ch. 23 - What accounts for the decrease in lung capacity...Ch. 23 - Aretha loves to sing. Right now she has a cold, a...Ch. 23 - Ms. Brown has smoked cigarettes for years and is...Ch. 23 - The Robinson family went to bed one frigid winter...
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- The action of the bronchodilator aims at opening blocked or closed airways. This helps the patient by: A) Restoring blood flow to those alveoli B) Inhibiting airway remodeling C) Reducing his physiological dead space D) Reducing his mucus secretionarrow_forwardWhich of the following are characteristics of a secondary bronchus? 1. presence of hyaline cartilage plates 2. presence of smooth muscle 3. airway lined by simple cuboidal (ciliated) epithelium 4. airway lined by simple columnar (ciliated) epithelium 5. simple squamous epithelium Choose the following: (A) 1, 2, and 3 (B) 1, 2, and 4 (C) 2 and 3 (D) 2 and 4 (E) 2, 3, and 4arrow_forwardUse the keywords higher or lower to complete each sentence: compared to atmospheric air, the partial pressure of O2 in the alveoli is (higher or lower) and the partial pressure of CO2 in the alveoli is (higher or lower)arrow_forward
- 1.) What are the forces that tend to make the lungs collapse? 2.) Enumerate the structures where gas exchange takes place. 3.) What is/are the significance of incomplete rings of tracheal cartilages?arrow_forwardWhat is the significance of the two membranes which surround the lungs? Between these membranes lies a cavity which is filled with fluid. What is the purpose of these membranes and the fluid filled cavity?arrow_forwardDescribe what structures are involved with gas exchange in the lungs? Describe how gas exchange occurs. Be sure to name the major gases involved.arrow_forward
- What function do the respiratory and cardiovascular systems have in common? What are the basic differences among pulmonary ventilation, external respiration and internal respiration? Illustrate and discuss the functions of the parts of the Respiratory System. Illustrate and describe the structure of the larynx. Explain how it functions in respiration and voice production. Define each of the following parts of a lung: Base Apex Cardiac notch Lobe Hilus How does the medullary rhythmicity area function in controlling respiration? How are the apneustic area and pneumotaxic area related to the control of respiration? Arrange the answers in correct sequence. ( A-E) From superior to inferior ____1. Bronchioles ____2. Bronchi ____3. Pharynx ____4. Larynx ____5. Trachea Pathway of inspired air ____1. External nares ____2. Meatus ____3. Nasopharynx ____4. Internal nares ____5. Vestibule Pathway of inspired air ____1. Alveolar ducts ____2. Bronchioles ____3. Secondary bronchi…arrow_forwardWill the gases continue to diffuse in these directions, or will they stop at some point? For example, the partial pressure of O2 in the alveoli is 104 mmHg and the partial pressure of O2 in the blood in the pulmonary capillaries is 40 mmHg. Will O2 continue to diffuse from the alveoli into the blood until the partial pressure of O2 in the alveoli is 0 mmHg?arrow_forwardDescribe the normal anatomy (structure) and physiology (function) of the respiratory system and the control of respiration. Key words: Alveoli, gas exchange, chemoreceptors, control of respiration, pressure, autonomic nervous system (SNS, PNS).arrow_forward
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