SCI 250 Week 5 Integumentary System Lab and Quiz

Resource: Integumentary System Lab

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Complete the Integumentary System Lab located on the student website.

Complete the open book quiz about diseases of the integumentary system. The quiz will be provided by your instructor.

 

University of Phoenix Material

 

Integumentary System Lab – Week Five

The integumentary system consists of skin, hair, nails, and nerves. As you learn about the various diseases that affect the integumentary system, it is important for you to understand the structures that can be affected by disease. Complete this lab to become familiar with a healthy system and to identify diseases related to the skin.

PART ONE: basic functions

Provide brief answers to the following questions to help you get acquainted with the basic functions of a healthy integumentary system. Refer to Ch. 19 in Microbiology: Principles and Explorations.

 

1.     How does the integumentary system prevent disease?

2.     How do sweat, sebaceous (oil), and mucus secretions help prevent disease?

3.     Which types of bacteria are considered normal skin microflora?

4.    Suppose a sample of bacteria was taken from your skin. If you were to perform a Gram stain on the sample, what is the likely Gram reaction – positive or negative? Explain your answer.

PART two: basic structures

Identify the selected integumentary system structures in the following diagram:

 

PIC.JPEG

 

 

PART three: investigate and apply

Access the Public Diseases & Conditions A-Z Index on the Centers for Disease Control and Prevention website at http://www.cdc.gov/DiseasesConditions/. Research one microbe-related skin disease (excluding sexually transmitted diseases) and complete the following activity.

 

Read the information on the CDC site and provide a brief, one- to two-paragraph summary of the skin condition. Include the following in your description:

 

·         The skin condition

·         The microbe causing the condition

·         Which structures of the integumentary system are affected—Use one or more structures included in Part Two.

·         Who is at risk

·         How serious the disease is

 

[Type your paragraph in the space below]

 

 

 

SCI250 Week 5 Chapter 19 Integumentary System Quiz – 5 point each (highlight, underline and or check the most appropriate answer)

Section: Multiple Choice

 

1.     The majority of the microorganisms on the surface of the human skin are ________

  • Gram-positive bacteria.
  • Gram-negative bacteria.
  • approximately equal numbers of Gram-positive and Gram-negative bacteria.
  • Spore-forming bacteria.
  • Enteric.

2.     The outer layer of the skin is the _________ while the deeper layer is the _________

  • cutaneous, keratin.
  • dermis, sebum.
  • mucous, epidermis.
  • epidermis, dermis.
  • sebum, keratin.

3.     A massive lesion caused by the spread of Staphylococcus aureus infection (often on the neck and upper back) is called a ________

  • boil.
  • furuncle.
  • Carbuncle.
  • abscess.
  • pustule.

4.     Scalded skin syndrome is caused by exotoxins (exfoliatins) produced by ________

  • Streptococcus pyogenes.
  • Staphylococcus aureus.
  • Propionibacterium acnes.
  • Pseudomonas aeruginosa.
  • Demodex folliculorum.

5.     Which of the following microorganisms causes scarlet fever?

  • Staphylococcus aureus
  • Propionibacterium acnes
  • Pseudomonas aeruginosa
  • Demodex folliculorum
  • Streptococcus pyogenes

6.     Which of the following is NOT a characteristic of impetigo?

  • It is common in children.
  • It can be caused by Staphylococcus aureus.
  • It can be caused by Streptococcus pyogenes.
  • It is highly contagious.
  • It can be caused by pseudomonads.

7.     What bacteria can multiply in blocked skin pores, metabolize sebum, and lead to the development of acne?

  • Pseudomonas aeruginosa
  • Propionibacterium
  • Serratia marcescens
  • Streptococcus pyogenes
  • Acne is not caused by a bacterial infection.

8.     Burn patients often develop a nosocomial infection caused by ________

  • Streptococcus epidermis
  • Staphylococcus aureus
  • Pseudomonas aeruginosa
  • Corynebacterium
  • Candida albicans

9.     Koplik’s spots develop during infection with ________

  • rubella virus.
  • Staphylococcus aureus.
  • Streptococcus pyogenes.
  • Varicella-zoster virus.
  • measles virus.

10.  Inflammation of the eye conjunctiva (bacterial conjunctivitis) can be caused by _______

  • Staphylococcus aureus
  • Streptococcus pneumoniae
  • Neisseria gonorrhoeae
  • Pseudomonas aeruginosa
  • All of the above

11.  Gas gangrene is most likely associated with infection with _______

  • Staphylococcus aureus.
  • Clostridium perfringenes.
  • Streptococcus pneumoniae.
  • Neisseria gonorrhoeae.
  • Pseudomonas aeruginosa.

12.  What is the leading cause of preventable blindness in the world?

  • Chlamydia trachomatis
  • Haemophilus influenzae
  • Neisseria gonorrhoeae
  • Staphylococcus aureus
  • Streptococcus pneumoniae

13.  The disease shingles is caused by the same virus that causes ________

  • measles.
  • smallpox.
  • German measles.
  • chickenpox.
  • hepatitis.

14.  Human papillomavirus causes ________

  • chickenpox.
  • measles.
  • molluscum contagiosum.
  • warts.
  • cowpox.

15.  Ringworm infection caused by Tinea can cause infections of the ________

  • groin.
  • nails.
  • scalp.
  • beard area.
  • All of the above

Section: Matching

 

16.  Acanthamoeba

  • vaginal yeast infection
  • skin and genital warts
  • protozoan keratitis (corneal ulcers)
  • scabies
  • ophthalmia neonatorum
  • trachoma

17.   Sarcoptes scabiei

  • vaginal yeast infection
  • skin and genital warts
  • protozoan keratitis (corneal ulcers)
  • scabies
  • ophthalmia neonatorum
  • trachoma

18.   Papillomaviruses

  • vaginal yeast infection
  • skin and genital warts
  • protozoan keratitis (corneal ulcers)
  • scabies
  • ophthalmia neonatorum
  • trachoma

19.  Chlamydia trachomatis

  • vaginal yeast infection
  • skin and genital warts
  • protozoan keratitis (corneal ulcers)
  • scabies
  • ophthalmia neonatorum
  • trachoma

20.  Candida albicans

  • vaginal yeast infection
  • skin and genital warts
  • protozoan keratitis (corneal ulcers)
  • scabies
  • ophthalmia neonatorum
  • trachoma

 

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