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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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
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.
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
- Humphrey has smoked for years. In the past few months, mucushas accumulated in his lungs and he coughs often. A tissue sample(biopsy) taken from the lower portion of his trachea indicated thatstratified squamous epithelium has replaced the normal pseudostratified columnar epithelium lining the trachea. Humphrey’s physicianexplained that he has bronchitis, inflammation of the respiratoryairways, caused by smoking. As a result, some of the normal epithelium of the large respiratory passageways has been converted tostratified squamous epithelium. Explain why mucus has accumulated in Humphrey’s lungs to a greater degree than normal.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_forwardThe 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_forward
- For 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_forwardWhat type of epithelium lines the alveoli? simple columnar simple squamous 0 0 0 0 pseudostratified stratified squamousarrow_forward
- Why are there cartilages lining parts of the respiratory tract? If support is needed, why aren’t thesecartilages complete encircling the segments in which they are found?arrow_forwardWhich of the following lines the anterior onethird of the nasal cavity?A. Stratified squamous epitheliumB. Simple cuboidal epitheliumC. Pseudostratified ciliated columnar epitheliumD. Simple squamous epitheliumarrow_forwardMatch the type of epithelium with its location in the respiratory system and its function.arrow_forward
- The 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_forwardMost organs of the human body contain all four (4) tissue types working together to allow the organ to perform its specific function. From the image of the respiratory tract below: (1) indicate with arrows where those four tissue types may be found and name them next to the arrows in that section of the tract. (2) Briefly describe the functions of the four tissue types. In your answer you must include a unique structural feature of each tissue type that allows it to perform this function. (e.g., in the stomach, specialised epithelial cells secrete HCl acid for digestion).arrow_forward
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