Textbook Question
Indicate which statements are true. Correct all false statements by changing the underlined words.
__________ The surface cells of the epidermis of the skin are alive.
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Ch. 15 - Innate Immunity
Bauman6th EditionMicrobiology with Diseases by TaxonomyISBN: 9780134832302
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Table of contents
- Ch. 1 - A Brief History of Microbiology31
- Ch. 2 - The Chemistry of Microbiology28
- Ch. 3 - Cell Structure and Function39
- Ch. 4 - Microscopy, Staining, and Classification25
- Ch. 5 - Microbial Metabolism51
- Ch. 6 - Microbial Nutrition and Growth37
- Ch. 7 - Microbial Genetics51
- Ch. 8 - Recombinant DNA Technology21
- Ch. 9 - Controlling Microbial Growth in the Environment36
- Ch. 10 - Controlling Microbial Growth in the Body: Antimicrobial Drugs21
- Ch. 11 - Characterizing and Classifying Prokaryotes29
- Ch. 12 - Characterizing and Classifying Eukaryotes34
- Ch. 13 - Characterizing and Classifying Viruses, Viroids, and Prions23
- Ch. 14 - Infection, Infectious Diseases, and Epidemiology35
- Ch. 15 - Innate Immunity34
- Ch. 16 - Adaptive Immunity21
- Ch. 17 - Immunization and Immune Testing29
- Ch. 18 - Immune Disorders22
- Ch. 19 - Pathogenic Gram-Positive Bacteria25
- Ch. 20 - Pathogenic Gram-Negative Cocci and Bacilli28
- Ch. 21 - Rickettsias, Chlamydias, Spirochetes, and Vibrios25
- Ch. 22 - Pathogenic Fungi47
- Ch. 23 - Parasitic Protozoa, Helminths, and Arthropod Vectors44
- Ch. 24 - Pathogenic DNA Viruses23
- Ch. 25 - Pathogenic RNA Viruses30
- Ch. 26 - Applied and Industrial Microbiology29
- Ch. 27 - Microbial Ecology and Microbiomes22
Bauman6th EditionMicrobiology with Diseases by TaxonomyISBN: 9780134832302Not the one you use?Change textbook
Chapter 15, Problem 1
Phagocytes of the epidermis are called:
a. Microglia
b. Goblet cells
c. Alveolar macrophages
d. Dendritic cells
Verified step by step guidance1
Understand that phagocytes are immune cells that engulf and digest pathogens and debris.
Recall that the epidermis is the outermost layer of the skin, which contains specialized immune cells.
Identify the types of phagocytes listed: Microglia are found in the central nervous system, Goblet cells secrete mucus and are not phagocytes, Alveolar macrophages are found in the lungs.
Recognize that dendritic cells are phagocytic cells located in the epidermis and act as antigen-presenting cells to initiate immune responses.
Conclude that the correct answer is dendritic cells, as they are the phagocytes of the epidermis.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Phagocytes
Phagocytes are immune cells that engulf and digest pathogens, debris, and foreign particles. They play a crucial role in the body's innate immune response by identifying and removing harmful microorganisms to protect tissues from infection.
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Surviving Inside Phagocytic Cells
Epidermal Dendritic Cells (Langerhans Cells)
Dendritic cells in the epidermis, also known as Langerhans cells, are specialized phagocytes that capture antigens and present them to T cells, initiating adaptive immunity. They act as sentinels in the skin, bridging innate and adaptive immune responses.
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Other Phagocytes and Their Locations
Different phagocytes reside in specific tissues: microglia are in the central nervous system, alveolar macrophages in the lungs, and goblet cells produce mucus but are not phagocytes. Recognizing their locations helps identify the correct phagocyte type in a given tissue.
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Related Practice
Textbook Question
Label the steps of phagocytosis.
a. ________
b. ________
c. ________
d. ________
e. ________
f. ________
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Textbook Question
Which line of defense first applies to each term?
1. ___ Inflammation
2. ___ Monocytes
3. ___ Lactoferrin
4. ___ Fever
5. ___ Dendritic cells
6. ___ Alpha interferon
7. ___ Mucous membrane of the digestive tract
8. ___ Neutrophils
9. ___ Epidermis
10. ___ Lysozyme
11. ___ Goblet cells
12. ___ Phagocytes
13. ___ Sebum
14. ___ T lymphocytes
15. ___ Antimicrobial peptides
A. First line of defense
B. Second line of defense
C. Third line of defense
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Textbook Question
Write the letter of the description that applies to each of the following terms:
1. ___ Goblet cell
2. ___ Lysozyme
3. ___ Stem cell
4. ___ Dendritic cell
5. ___ Cell from sebaceous gland
6. ___ Bone marrow stem cell
7. ___ Eosinophil
8. ___ Alveolar macrophage
9. ___ Microglia
10. ___ Wandering macrophage
A. Leukocyte that primarily attacks parasitic worms
B. Phagocytic cell in lungs
C. Secretes sebum
D. Devours pathogens in epidermis
E. Breaks bonds in bacterial cell wall
F. Phagocytic cell in central nervous system
G. Generative cell with many types of offspring
H. Develops into formed elements of blood
I. Intercellular scavenger
J. Secretes mucus
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