Human Anatomy (9th Edition)
9th Edition
ISBN: 9780134320762
Author: Frederic H. Martini, Robert B. Tallitsch, Judi L. Nath
Publisher: PEARSON
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Question
Chapter 3, Problem 2CT
Summary Introduction
To review:
Formulate a hypothesis for the smoker’s cough in the absence of cilia in the respiratory epithelium.
Introduction:
The respiratory epithelium, right from the nasal cavity, is lined with small cilia. The cilia are present on the pseudostratified columnar epithelium along with the goblet cells. The majority of bronchioles in the lungs is lined with the simple cuboidal epithelium. However, the lining of the alveoli is composed of simple squamous epithelium. The cilia on the respiratory epithelium help in the movement of the mucus.
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Students have asked these similar questions
In the lungs of smokers, a process called metaplasia occurs in which the normal lining cells of the lung are replaced by squamous metaplastic cells (many layers of squamous epithelial cells). Functionally, why is this an undesirable body reaction to tobacco smoke?
HINT Your answer should mention the structure and function of the normal lining cells of the lung.
Why are epithelial cells lining the trachea have cilia?
What is the purpose of the cilia on the respiratory epithelium?
Chapter 3 Solutions
Human Anatomy (9th Edition)
Ch. 3 - Match each numbered item with the most closely...Ch. 3 - Match each numbered item with the most closely...Ch. 3 - Match each numbered item with the most closely...Ch. 3 - Match each numbered item with the most closely...Ch. 3 - Match each numbered item with the most closely...Ch. 3 - Match each numbered item with the most closely...Ch. 3 - Match each numbered item with the most closely...Ch. 3 - Match each numbered item with the most | closely...Ch. 3 - Match each numbered item with the most closely...Ch. 3 - Match each numbered item with the most closely...
Ch. 3 - 11. Label the following photomicrographs with the...Ch. 3 - Which of the following refers to the dense...Ch. 3 - The reduction of friction between the parietal and...Ch. 3 - Which of the following is not a characteristic of...Ch. 3 - Functions of connective tissue include all of the...Ch. 3 - What type of supporting tissue is found in the...Ch. 3 - An epithelium is connected to underlying...Ch. 3 - Which of the following are wandering cells found...Ch. 3 - Compare and contrast the role of a tissue in the...Ch. 3 - Compare and contrast the functions of a tendon and...Ch. 3 - Prob. 3RCCh. 3 - Analyze the significance of the cilia on the...Ch. 3 - Prob. 5RCCh. 3 - A layer of glycoproteins and a network of fine...Ch. 3 - Prob. 7RCCh. 3 - Prob. 8RCCh. 3 - Identify what stem cells are and analyze their...Ch. 3 - Prob. 1CTCh. 3 - Prob. 2CTCh. 3 - 3. Assess why cardiac muscle ischemia (inadequate...
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- 1. A 40-year-old man is brought to the emergency department after being exposed to ozone and nitrogen dioxide at a factory. He dies shortly thereafter. At autopsy, examination of tissue taken from a lung biopsy suggests damage to his alveolar epithelium. If he had survived, this layer would have likely been regenerated within several weeks by which of the following cells? O A) Clara cells O B) Endothelial cells OC) Reticular cells OD) Type I pneumocytes OE) Type II pneumocytesarrow_forwardHow would a decrease in the concentration of oxygen in the lungs affect the diffusion of oxygen into the blood?arrow_forwardThe structure in the lungs known as the respiratory meme Dane is where the gases are exchanged - oxygen leaves the lungs and enters the blood, and carbon dioxide leaves the blood and enters the lungs. The respiratory membrane is composed of two extremely thin layers of simple squamous epithelium. Explain how the structure of the respiratory meme range follows its function.arrow_forward
- The structure in the lungs known as the respiratory membrane is where gases are exchanged -oxygen leaves the lungs and enters the blood, and carbon dioxide leaves the blood and enters the lungs. The respiratory membrane is composed of two extremly thin layers of simple squamous epithelium. Explain how the structure of the respiratory membrane follows its function.arrow_forwardOne of the main functions of connective tissue is to integrate organs and organ systems in the body. Discuss how blood fulfills this role.arrow_forwardOne type of epithelial tissue can convert into another under certain abnormal conditions. Give two examples that might be used to show or explain this procedure.arrow_forward
- Mucous cells may secrete excess mucus in response to irritants. What symptoms might this produce in the (a) digestive tract or (b) respiratory tract?arrow_forwardThe epithelium of the respiratory tract is mostly of the pseudostratified columnar ciliated type, but in the alveoli, the tiny sacs where oxygen and carbon dioxide are exchanged between the blood and inhaled air, the epithelium is simple squamous. Explain the functional significance of this histological difference. That is, why do the alveoli not have the same kind of epithelium as the rest of the respiratory tract? Explain your answer in 4 to 5 sentences. Indicate the reference/s of your answer.arrow_forwardWhich of these is NOT true of pseudostratified ciliated columnar epithelium? It produces mucus to trap particles in the respiratory tract It appears to be more than one layer of cells but is actually only one layer. It is used to sweep small particles away from the lungs It is used in the respiratory system as a protective barrier in areas with increased friction.arrow_forward
- A 50-year-old man comes to the physician because of a cough productive of large quantities of mucus for 6 months. He has smoked 1 pack of cigarettes daily for 25 years. Which of the following cell types is the most likely cause of the increase in this patient's secretion of mucus? (A) Columnar ciliated epithelial cells (B) Goblet cells (C) Interstitial cells (D) Macrophages (E) Pneumocyte epithelial cellsarrow_forwardMonocytes are powerful phagocytes. Skeletal muscle fibers do mechanical work. Goblet secrete mucus. In each of these 3 cases, decide which cellular organelle (s) must be present in great abundance in order to accomplish the functions described and indicate how these organelles are involved.arrow_forwardWhich of the following statements is TRUE regarding mucus and cilia? 1. clear dust, pollen, and contaminants in airways 2. to increase the rate at which carbon dioxide enters the body 3. it clears oxygen within the blood 4. clear white blood cells from the lunngs.arrow_forward
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