Microbiology with Diseases by Body System (4th Edition)
4th Edition
ISBN: 9780321918550
Author: Robert W. Bauman Ph.D.
Publisher: PEARSON
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Textbook Question
Chapter 19, Problem 1MC
The epidermis ____.
- a. has an intricate network of blood vessels
- b. consists of layers of loosely packed cells
- c. contains a waterproofing protein
- d. has a thin layer of fat cells
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Students have asked these similar questions
1. A)
A major function of the skin is protection from ______.
A.
abrasion
B.
ultraviolet light
C.
entry of a microorganism
D.
dehydration
E.
All of the above
B)
What is one important function of melanin?
A.
Resets the diurnal biological clock
B.
Increases the amount of blood vessels
C.
Causes the skin to become cooler
D.
Absorbs harmful radiation
E.
Strengthens the skin or eyes
C)
Most of the cells of the epidermis are ________________.
A.
fibroblasts
B.
keratinocytes
C.
macrophages
D.
Langerhans cells
D)
The epidermis is nourished by diffusion from capillaries in the ___________.
A.
papillary layer of the dermis
B.
hypodermis
C.
epidermis
D.
reticular layer of the dermis
E)
Cell division occurs in which layer of the epidermis?
A.
Stratum lucidum
B.
Stratum corneum
C.
Stratum basale
D.
Stratum granulosum
F)
Which of the following is NOT…
The accumulation of dead keratinocytes and the protein ____ on the skin surface forms a waterproof barrier.
Choose one:
A.keratin
B.oil
C.melanin
D.collagen
As individuals age, the number of collagen fibers that are found in the dermis of
the skin decreases. What are the results of decreased collagen fibers in the
dermis?
Select all that apply.
A
The skin loses firmness and becomes wrinkled
B The skin develops necrosis and slowly begins to die.
C The inflammation levels in the skin increase drastically.
The wound healing process in the skin is slower.
Chapter 19 Solutions
Microbiology with Diseases by Body System (4th Edition)
Ch. 19 - Prob. 1TMWCh. 19 - Prob. 2TMWCh. 19 - Buruli Ulcer Jacques liked living in the...Ch. 19 - Prob. 3TMWCh. 19 - A Painful Rash A mother brings her three-year-old...Ch. 19 - A Child with Warts Ten-year-old Rudy has several...Ch. 19 - Grandfathers Shingles The Davises were excited...Ch. 19 - Prob. 4TMWCh. 19 - Prob. 4CCSCh. 19 - Prob. 5TMW
Ch. 19 - Diagnosis in the Desert In the 1970s,...Ch. 19 - Prob. 2EDCSCh. 19 - The epidermis ____. a. has an intricate network of...Ch. 19 - Prob. 2MCCh. 19 - Prob. 3MCCh. 19 - Prob. 4MCCh. 19 - Prob. 5MCCh. 19 - Prob. 6MCCh. 19 - Prob. 7MCCh. 19 - Prob. 8MCCh. 19 - Prob. 9MCCh. 19 - Prob. 10MCCh. 19 - Prob. 11MCCh. 19 - Prob. 12MCCh. 19 - Prob. 13MCCh. 19 - Prob. 14MCCh. 19 - Prob. 15MCCh. 19 - Prob. 1MCh. 19 - Prob. 1FIBCh. 19 - Prob. 2FIBCh. 19 - Prob. 3FIBCh. 19 - Prob. 4FIBCh. 19 - Prob. 5FIBCh. 19 - Prob. 6FIBCh. 19 - Prob. 7FIBCh. 19 - Prob. 8FIBCh. 19 - Prob. 9FIBCh. 19 - Most pimples result from infection by ______ not...Ch. 19 - Prob. 1MTFCh. 19 - Prob. 2MTFCh. 19 - Prob. 3MTFCh. 19 - Prob. 4MTFCh. 19 - Prob. 5MTFCh. 19 - Prob. 1SACh. 19 - Prob. 2SACh. 19 - Considering that Pseudomonas aeruginosa and...Ch. 19 - Prob. 4SACh. 19 - Prob. 5SACh. 19 - Describe four enzymes produced by Staphylococcus,...Ch. 19 - Prob. 7SACh. 19 - Prob. 8SACh. 19 - Prob. 9SACh. 19 - Prob. 10SACh. 19 - Label each lesion seen in poxvirus infections.Ch. 19 - Prob. 2VICh. 19 - Prob. 3VICh. 19 - Prob. 1CTCh. 19 - Why is it more difficult to rid a community of a...Ch. 19 - Prob. 3CTCh. 19 - Prob. 4CTCh. 19 - Prob. 5CTCh. 19 - Most DNA viruses replicate within the nucleus of a...Ch. 19 - Prob. 7CTCh. 19 - Prob. 8CTCh. 19 - Prob. 9CTCh. 19 - Prob. 10CTCh. 19 - Prob. 11CTCh. 19 - Why do impetigo and erysipelas occur more commonly...Ch. 19 - Prob. 13CTCh. 19 - Prob. 14CTCh. 19 - Prob. 1CM
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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
- 1. Epithelial cells are found on the lining of the digestive system and in the skin. What are some specializations of these cells to withstand the harsh environment? Include at least 3 different specializations. 2. Draw and describe the 4 tissue types and give an example of each. 3. Draw and label the different layers found in the epidermis. Describe how keratinocytes change in each layer. a. Stratum Germinativum b. Stratum Spinosum c. Stratum Granulosum d. Stratum Lucidum e. Stratum Corneum 4. Describe the 3 factors in skin color. Draw and describe the structure of hair follicles. Be sure to include each of the following: shaft root Arrector pili muscle Medulla cortex and cuticlearrow_forwardPaper cuts are often very painful but don't always bleed. What two properties of the skin explain this combination? A. the dermis is innervated, but the epidermis is not B. the epidermis is innervated C. the epidermis is avascular D. paper cuts only go as deep as the reticular dermis E. the epidermis and papillary dermis are avasculararrow_forwardMelanocytes and keratinocytes work together in protecting the skin from UV damage when keratinocytes ________ a.maintain the appropriate pH in order for the melanocyte to synthesize melanin granules. b.provide the melanocyte with nutrients necessary for melanin synthesis. c.maintain the appropriate temperature so the product of the melanocyte will not denature. d.accumulate the melanin granules on their superficial portion, forming a UV-blocking pigment layer.arrow_forward
- Why would collagen and elastin added to skin creams be unlikely to penetrate the skin—as some advertisements imply they do? HINT Think about the features of the skin that make it a good physical barrier.arrow_forwardA dendritic or Langerhan cell is a specialized _______. a.phagocytic cell b.squamous epithelial cell c.melanocyte d.nerve cellarrow_forwardExplain your skin’s response to a drop in body coretemperature.arrow_forward
- Cell division occurs in which layer of the epidermis? A. Stratum granulosum B. Stratum lucidum C. Stratum corneum D. Stratum basalearrow_forwardMark the following statements as true or false. If a statement is false, correct it to make a true statement.a. Melanocytes account for the bulk of the epidermis. b. Keratinocytes begin life in the stratum corneum and gradually are pushed into the stratum basale. c. Dendritic cells are phagocytes of the immune system that protect the skin and deeper tissues from invasion by pathogens. d. Merkel cells produce the pigment melaninarrow_forwardWhich of the following statements about epidermal cell types is false? a. Keratinocytes produce the fibrous keratin protein b. Melanocytes produce the pigment melanin c. Langerhans cells produce macrophages d. Merkel cell send information to sensory neurons e. None of the abovearrow_forward
- What are keratinocytes and what do they do? 2. Which layer(s) of epidermis do I find melanocytes in? Include an image 3. Immune cells need to be able to move around to do their job as cells. So, explain what kind of connective tissue would be best for them and why?:4. Include an image of the connective tissue you named above here. 5. Where is dense regular connective tissue found?arrow_forwardWhich of the following statements about melanocytes and keratinocytes is true? a. Melanocytes are in the dermis and keratinocytes are in the epidermis b. Melanocytes produce pigment but keratinocytes do not. c. Both cell types produce waterproofing material. d. Both cell types divide and die as they move away from their blood supply.arrow_forwardSebaceous glands are located in the __________, are associated with the __________, and secrete ________. A. epidermis, hair follicle, sebum B. papillary layer, skin cells, oil C. dermis, nail bed, sebum D. dermis, hair follicle, sebum E. epidermis, hair follicle, oilarrow_forward
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