Anatomy & Physiology: The Unity of Form and Function
8th Edition
ISBN: 9781259277726
Author: Kenneth S. Saladin Dr.
Publisher: McGraw-Hill Education
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Chapter 5, Problem 4TYC
The epithelium of the respiratory tract is mostly of the pseudostratified columnar ciliated type, but in the alveoli–the tiny air 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 don’t the alveoli have the same kind of epithelium as the rest of the respiratory tract?
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Students have asked these similar questions
The respiratory membrane is composed of two extremely thin layers of simple squamous epithelium. Explain how this structure supports or helps the function of the respiratory membrane.
Identify the epithelium lining a (any) component of the respiratory zone of the respiratory tract
1. simple squamous epithelium
2. simple cuboidal (ciliated) epithelium
3. simple columnar (ciliated) epithelium
4. pseudostratified columnar (ciliated) epithelium
5. stratified squamous epithelium
Choose the following:
(A) 1, 2, and 3
(B) 1 and 2
(C) 4 and 5
(D) 2, 3, and 4
(E) 3, 4, and 5
Respiratory Histology: For each of the following parts of the respiratory tract, indicate the type of epithelium found there (simple squamous, stratified squamous, pseudostratified ciliated columnar), and why that location requires the type of epithelium that it has.
Part of the Respiratory Tract
Type of Epithelium
Vestibule of the nostril
Laryngopharynx
Nasal cavity
Nasopharynx
Oropharynx
Alveoli
Chapter 5 Solutions
Anatomy & Physiology: The Unity of Form and Function
Ch. 5.1 - Classify each of the following into one of the...Ch. 5.1 - What are tissues composed of in addition to cells?Ch. 5.1 - Prob. 3BYGOCh. 5.1 - Prob. 4BYGOCh. 5.1 - Two names for the branch of biology concerned with...Ch. 5.1 - Prob. 2AYLOCh. 5.1 - The roles of cells, matrix, fibers, and ground...Ch. 5.1 - Primary germ layers of the embryo and their...Ch. 5.1 - Prob. 5AYLOCh. 5.2 - Distinguish between simple and stratified...
Ch. 5.2 - Prob. 6BYGOCh. 5.2 - Prob. 7BYGOCh. 5.2 - Prob. 8BYGOCh. 5.2 - Prob. 1AYLOCh. 5.2 - Prob. 2AYLOCh. 5.2 - 5.2 Epithelial Tissue 3. Defining characteristics...Ch. 5.2 - Prob. 4AYLOCh. 5.2 - Prob. 5AYLOCh. 5.2 - Prob. 6AYLOCh. 5.2 - Prob. 7AYLOCh. 5.2 - Prob. 8AYLOCh. 5.2 - Prob. 9AYLOCh. 5.3 - What features do most or all connective tissues...Ch. 5.3 - Prob. 10BYGOCh. 5.3 - Prob. 11BYGOCh. 5.3 - Prob. 12BYGOCh. 5.3 - Discuss the difference between dense regular and...Ch. 5.3 - Prob. 14BYGOCh. 5.3 - Prob. 15BYGOCh. 5.3 - Prob. 1AYLOCh. 5.3 - Prob. 2AYLOCh. 5.3 - Prob. 3AYLOCh. 5.3 - Prob. 4AYLOCh. 5.3 - Prob. 5AYLOCh. 5.3 - 5.3 Connective Tissue 6. The appearance,...Ch. 5.3 - Prob. 7AYLOCh. 5.3 - Prob. 8AYLOCh. 5.3 - Prob. 9AYLOCh. 5.3 - Prob. 10AYLOCh. 5.3 - 5.3 Connective Tissue 11. Why blood is classified...Ch. 5.4 - Prob. 16BYGOCh. 5.4 - Prob. 17BYGOCh. 5.4 - Prob. 18BYGOCh. 5.4 - Prob. 1AYLOCh. 5.4 - Prob. 2AYLOCh. 5.4 - Prob. 3AYLOCh. 5.4 - 5.4 Nervous and Muscular TissuesExcitable Tissues...Ch. 5.4 - Prob. 5AYLOCh. 5.5 - Prob. 19BYGOCh. 5.5 - Prob. 20BYGOCh. 5.5 - Prob. 21BYGOCh. 5.5 - Prob. 22BYGOCh. 5.5 - Prob. 23BYGOCh. 5.5 - Prob. 1AYLOCh. 5.5 - Prob. 2AYLOCh. 5.5 - Prob. 3AYLOCh. 5.5 - Prob. 4AYLOCh. 5.5 - Prob. 5AYLOCh. 5.5 - Prob. 6AYLOCh. 5.5 - Prob. 7AYLOCh. 5.5 - 5.5 Cell Junctions, Glands, and Membranes 8....Ch. 5.5 - 5.5 Cell Junctions, Glands, and Membranes 9....Ch. 5.5 - Prob. 10AYLOCh. 5.6 - Distinguish between differentiation and...Ch. 5.6 - Prob. 25BYGOCh. 5.6 - Prob. 26BYGOCh. 5.6 - Distinguish between regeneration and fibrosis....Ch. 5.6 - Prob. 1AYLOCh. 5.6 - Prob. 2AYLOCh. 5.6 - 5.6 Tissue Growth, Development, Repair, and...Ch. 5.6 - Prob. 4AYLOCh. 5.6 - Prob. 5AYLOCh. 5.6 - Prob. 6AYLOCh. 5.6 - Prob. 7AYLOCh. 5.6 - 5.6 Tissue Growth, Development, Repair, and...Ch. 5 - Transitional epithelium is found is a. the urinary...Ch. 5 - Prob. 2TYRCh. 5 - Which of these is a primary germ layer? a....Ch. 5 - A seminiferous tubule of the testis is lined with...Ch. 5 - Prob. 5TYRCh. 5 - A fixative serves to a. stop tissue decay. b....Ch. 5 - Prob. 7TYRCh. 5 - Prob. 8TYRCh. 5 - Prob. 9TYRCh. 5 - Prob. 10TYRCh. 5 - Prob. 11TYRCh. 5 - Prob. 12TYRCh. 5 - Prob. 13TYRCh. 5 - Prob. 14TYRCh. 5 - Tendons and ligaments are made mainly of the...Ch. 5 - Prob. 16TYRCh. 5 - Prob. 17TYRCh. 5 - Fibers and ground substance make up the ______ of...Ch. 5 - A/An _______ adult stem cell can differentiate...Ch. 5 - Prob. 20TYRCh. 5 - Prob. 1BYMVCh. 5 - Prob. 2BYMVCh. 5 - State a meaning of each word element, and give a...Ch. 5 - Prob. 4BYMVCh. 5 - Prob. 5BYMVCh. 5 - State a meaning of each word element, and give a...Ch. 5 - Prob. 7BYMVCh. 5 - Prob. 8BYMVCh. 5 - Prob. 9BYMVCh. 5 - Prob. 10BYMVCh. 5 - The esophagus is protected from abrasion by a...Ch. 5 - Prob. 2WWTSCh. 5 - Prob. 3WWTSCh. 5 - Prob. 4WWTSCh. 5 - Prob. 5WWTSCh. 5 - Prob. 6WWTSCh. 5 - Prob. 7WWTSCh. 5 - Prob. 8WWTSCh. 5 - Prob. 9WWTSCh. 5 - Prob. 10WWTSCh. 5 - A woman in labor is often told to push. In doing...Ch. 5 - A major tenet of the cell theory is that all...Ch. 5 - Prob. 3TYCCh. 5 - The epithelium of the respiratory tract is mostly...Ch. 5 - Which do you think would heal faster, cartilage or...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Mucous membranes (pseudostratified ciliated columnar epithelia) line most upper respiratory tract structures. Although these membranes filter the air by trapping pathogens in mucus, they are very delicate. Pieces of food passing through the oropharynx and laryngopharynx could damage this type of epithelium. Predict which type of epithelium protects the lining of the oropharynx and laryngopharynx.arrow_forwardIn chronic smokers, the lining of the trachea and bronchichanges from a pseudostratified ciliated columnarepithelium to a stratified squamous epithelium. Why do youthink this change occurs? What are some consequences ofthis epithelium in the trachea?arrow_forwardThe exchange of oxygen and carbon dioxide between the air spaces in the lungs and the blood takes place by diffusion across alveolar and capillary walls. Describe the membrane that these gases diffuse through.arrow_forward
- The Respiratory System Examine an H&E slide of a transverse section of the trachea or main bronchus, and respond to the following. 1. Give the three major layers in its wall from within outwards.i.ii.ii. 2. At high power fucus on the the apical surface of the epithelium,what structures are there? 3. What is function of the apical cell surface structures? 4. Still at a high power, how many nuclear (cell) layers can you observe? 5. Why is the epithelium called pseudostratified? 6. Look for goblet cells; what three functions do mucus produced by these cells serve?i.ii.iii. 7. Besides globlet cells, what other four types of cells are present in the epithelium?I.ii.iii.iv. 8. The epithelium is supported by a lamina priopria of loose connective tissue. Which two connective tissue fibres occur in this sub-layer?i.ii. 9. The presence of seromucous glands indicates the submucosal layer. What function is served by secretions of these glands? 10. The presence of the cartilage indicates the…arrow_forwardFor gas exchange to occur quickly and efficiently, which type of epithelium must be present on all respiratory surfaces? Group of answer choices Pseudostratified columnar epithelium Ciliated columnar epithelium Simple squamous epithelium Stratified squamous epithelium Ciliated squamous epitheliumarrow_forwardWhat type of epithelium lines the gas exchange surfaces of the alveoli? a. pseudostratified columnar epithelium b. ciliated columnar epithelium c. simple squamous epithelium d. simple cuboidal epithelium I believe that it is pseudostratified ciliated columnar epithelium but that is not an option so I don't know what one to choose.arrow_forward
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- Match the type of epithelium with its location in the respiratory system and its function.arrow_forwardThe unique cell (arrow) called the cilia is found in epithelium lining the trachea or larynx.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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