Human Anatomy
9th Edition
ISBN: 9780135168059
Author: Marieb, Elaine Nicpon, Brady, Patricia, Mallatt, Jon
Publisher: Pearson Education, Inc.,
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Chapter 22, Problem 13RQ
Summary Introduction
To review:
The function of elastin in the structures of the respiratory system.
Introduction:
The respiratory tree contains many specialized connective tissues; mucosa as well as submucosa cells that helps the lungs to carry out the function of breathing. These processes involve a simultaneous set of contraction and relaxation. Thus, specialized fibers and muscles are required to make sure the smooth contraction and relaxation of these structures.
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What is the function of the abundant elastin fibers that occur in the stroma of the lung and around all respiratory tubes from the trachea through the respiratory tree?
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Contrast the epithelium of the bronchioles with that of the alveoli and explain how the structural difference is related to their functional differences?
Chapter 22 Solutions
Human Anatomy
Ch. 22 - Which respiratory structures are lined with...Ch. 22 - Prob. 2CYUCh. 22 - Prob. 3CYUCh. 22 - Prob. 4CYUCh. 22 - Prob. 5CYUCh. 22 - Prob. 6CYUCh. 22 - At what level of the bronchial tree are cartilage...Ch. 22 - Prob. 8CYUCh. 22 - Name the fissure that separates the superior and...Ch. 22 - In what order, from superior to inferior, do the...
Ch. 22 - Would a stab wound in the midclavicular line just...Ch. 22 - How does contraction of the diaphragm affect the...Ch. 22 - What will happen to the lung in the stab wound...Ch. 22 - Prob. 14CYUCh. 22 - Prob. 15CYUCh. 22 - Prob. 16CYUCh. 22 - Prob. 17CYUCh. 22 - Prob. 18CYUCh. 22 - Prob. 1RQCh. 22 - Prob. 2RQCh. 22 - Prob. 3RQCh. 22 - Prob. 4RQCh. 22 - Match the proper type of lining epithelium from...Ch. 22 - Match the air tube in column B with the lung...Ch. 22 - Prob. 7RQCh. 22 - Prob. 8RQCh. 22 - A serous cell of a gland secretes (a) the slippery...Ch. 22 - The function of type I alveolar cells is to (a)...Ch. 22 - Prob. 11RQCh. 22 - Prob. 12RQCh. 22 - Prob. 13RQCh. 22 - Prob. 14RQCh. 22 - Prob. 15RQCh. 22 - The three terms choanae, conchae, and carina are...Ch. 22 - Prob. 17RQCh. 22 - Sketch a picture of the right and left lungs in...Ch. 22 - Prob. 19RQCh. 22 - Prob. 20RQCh. 22 - Prob. 1CRCAQCh. 22 - Prob. 2CRCAQCh. 22 - Prob. 3CRCAQCh. 22 - Prob. 4CRCAQCh. 22 - Prob. 5CRCAQCh. 22 - Prob. 6CRCAQ
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- How does the structure of alveoli maximize gas exchange?arrow_forwardWhen 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?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
- The 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_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_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_forward
- 18. 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_forwardDiffusion of gases occurs in the alveolar region only and not in the other parts of respiratory system. Why?arrow_forwardThe alveoli in the lungs where gas exchange occurs are composed of a simple squamous epithelium. What is thestructure of this tissue type, and how does its structure make gas exchange possible?arrow_forward
- When considering the limitations of external respiration, explain why animals larger than flatworms require specialized structures for ventilation. List two examples of these specialized structures.arrow_forwardRespiratory System Examine an H&E slide of a transverse section of the trachea provided by the diagram: 1.a) Still at a high power, how many nuclear (cell) layers can you observe? 1. b) Why is the epithelium called pseudostratified? 2.a) Look for goblet cells; what three functions do mucus produced by these cells serve?i.ii.iii. 2.b) Besides globlet cells, what other four types of cells are present in the epithelium?I.ii.iii.iv. 3. The epithelium is supported by a lamina priopria of loose connective tissue. Which two connective tissue fibres occur in this sub-layer?i.ii.arrow_forwardOxygen diffuses from the inhaled air in the alveoli of the lungs, where its concentration is higher, into the cytoplasm of red blood cells, where its concentration is lower. Patients diagnosed with emphysema have damaged alveoli. This results to fewer, larger air spaces instead of many small ones. Explain how this damage can lead to shortness of breath? The surface area of lungs is reduced. Hence, less oxygen can diffuse into the red blood cells. The surface area of lungs is increased. Hence, more oxygen can diffuse into the red blood B cells. The surface area of lungs is reduced. Hence, more oxygen can diffuse into the red blood cells. The surface area of lungs is increased. Hence, less oxygen can diffuse into the red blood cells.arrow_forward
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Respiratory System; Author: Amoeba Sisters;https://www.youtube.com/watch?v=v_j-LD2YEqg;License: Standard youtube license