Sci 250 week 6 respiratory system lab and quiz

Resource: Respiratory System Lab

Complete the Respiratory System Lab located on the student website.

Complete the open-book quiz about the respiratory system and associated diseases. The quiz will be provided by your instructor.

 

 

Respiratory System Lab – Week Six

The respiratory system consists of the upper respiratory tract (the nasal cavity, pharynx, larynx, trachea, and bronchi) and the lower respiratory tract (the lungs). As you learn about the various diseases that affect the respiratory 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 both the upper and lower respiratory tracts.

PART ONE: basic functions

Provide brief answers to the following questions to help you get acquainted with the basic functions of a healthy respiratory system. Refer to Ch. 21 in Microbiology: Principles and Explorations.

 

1.     How do body reflexes like coughing and sneezing help prevent or fight infection?

2.     What role do cilia play in maintaining a healthy respiratory system? 

3.     Compare normal microflora of the upper respiratory tract with normal microflora of the lower respiratory tract.

PART two: basic structures

Visit Chapter 21 of Microbiology: Principles and Explorations in WileyPlusto view an in-depth presentation of a healthy respiratory system by completing the following steps:

 

·      Select the Chapter 21 WileyPlus reading link located on your student Web page.

·      Locate the heading Chapter Review.

·      Select the Anatomy Overview: The Respiratory System link.

·      Complete this lab as you explore the Respiratory System multimedia piece.

 

Overview

 

Roll over each component of the Conducting and Respiratory portions of the Respiratory System multimedia piece. Take note of how the preserved trachea and lung photograph on the left compares to the illustrated diagram on the right.

 

Upper Respiratory System (Conducting Portion: Nasal Cavity)

 

Roll over and click either the nasal cavity or pharynx components of the Conductingportion of the Respiratory Systemmultimedia piece to navigate to the Nasal Cavity. Refer to Nasal Cavitycomponent of the multimedia piece and Ch. 21, Figure 21.8 in Microbiology: Principles and Explorations to label the structures in the following diagram of a healthy upper respiratory system.

 

 

 

Lower Respiratory System (Respiratory Portion: Lungs)

 

Click the icon in the upper left corner of the Nasal Cavity diagram to return to the main menu in the Respiratory Systemmultimedia piece. Click the lungs component of the Respiratory Portionto navigate to the Lungdiagram. Refer to Lungdiagram of the multimedia piece and Ch. 21, Figure 21.1 in Microbiology: Principles and Explorations to label the structures in the following diagrams of a healthy lower respiratory system. Please note: The first diagram that follows is found only in Ch. 21, Figure 21.1, and not in the Lung component of the multimedia piece.

 

PART three: investigate and apply

Visit the Centers for Disease Control and Prevention. Access the Public Diseases & Conditions A-Z Index at http://www.cdc.gov/DiseasesConditions/ Scroll down to the section titled Top Requested Diseases & Conditions. Review the list of diseases about that the general public is most frequently requesting information about. You will notice some familiar diseases from your assigned readings. Click on at least one microbe-related respiratory system disease and complete the following activity.

 

Read the information on the CDC site and provide a brief, 1-2 paragraph summary of the respiratory illness. Include in your description:

 

·         The respiratory illness

·         The microbe causing the illness

·         Which structures of the respiratory 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]

 

 

 

 

©2008 University of Phoenix. All rights reserved.

 

 

 

 

SCI250 Week 6 Chapter 21 Respiratory System Quiz –   4 pts each.  Please underline, highlight, and or check the most appropriate answer.

Section: Matching

 

1.     Catarrhal stage with fever, sneezing, vomiting, and mild cough; paroxysmal stage with ropy mucus and violent cough; convalescent stage with mild cough

  • Whooping cough
  • Classic pneumonia
  • Legionnaires’ disease
  • Tuberculosis
  • Influenza
  • Respirator syncytial virus infection
  • Hantavirus pulmonary syndrome
  • Acute respiratory disease
  • Histoplasmosis
  • Cryptococcosis
  • Aspergillosis

2.     Inflammation of bronchi or alveoli of lungs with fluid accumulation and fever

  • Whooping cough
  • Classic pneumonia
  • Legionnaires’ disease
  • Tuberculosis
  • Influenza
  • Respiratory syncytial virus infection
  • Hantavirus pulmonary syndrome
  • Acute respiratory disease
  • Histoplasmosis
  • Cryptococcosis
  • Aspergillosis

3.     Tubercles in lungs and sometimes in other tissues; organisms can persist in walled-off lesions and be reactivated

  • Whooping cough
  • Classic pneumonia
  • Legionnaires’ disease
  • Tuberculosis
  • Influenza
  • Respiratory syncytial virus infection
  • Hantavirus pulmonary syndrome
  • Acute respiratory disease
  • Cryptococcosis
  • Aspergillosis

4.     Febrile disease of the respiratory tract; can cause viral pneumonia

  • Whooping cough
  • Classic pneumonia
  • Legionnaires’ disease
  • Tuberculosis
  • Influenza
  • Respiratory syncytial virus infection
  • Hantavirus pulmonary syndrome
  • Acute respiratory disease
  • Histoplasmosis
  • Cryptococcosis
  • Aspergillosis

5.     Allergic asthmatic response to inhalation of spores or invasive infection of lung; fungal balls can cause asphyxiation

  • Whooping cough
  • Classic pneumonia
  • Legionnaires’ disease
  • Tuberculosis
  • Influenza
  • Respiratory syncytial virus infection
  • Hantavirus pulmonary syndrome
  • Acute respiratory disease
  • Histoplasmosis
  • Cryptococcosis
  • Aspergillosis

Section: Multiple Choice

 

6.     Which of the following is NOT a nonspecific defense mechanism associated with the respiratory tract?

  • Epiglottis
  • Mucus
  • Mucociliary escalator
  • Phagocytes
  • None of the above

7.     To cause disease, Corynebacterium diptheriae must ________

  • produce a hemolysin.
  • create a pseudomembrance.
  • be infected with a lysogenic, toxin-producing bacteriophage.
  • invade the bloodstream.
  • become club-shaped.

8.     The majority of patients with sore throats have a viral infection of the pharynx.

9.     Which of the following respiratory infections CANNOT be treated with antimicrobial drugs?

  • Atypical pneumonia
  • Q Fever
  • Otitis media
  • Common cold
  • Tuberculosis

10.  Development of a vaccine against rhinoviruses is difficult because ________

  • they are resistant to antibiotics.
  • they are resistant to low pH.
  • there are many different, antigenically diverse strains.
  • rhinoviruses are resistant to immune system defenses.
  • rhinoviruses replicate at a very high rate.

11.  Which of the following is true of croup?

  • Croup causes severe obstruction of the larynx.
  • Croup causes an inflamed and enlarged epiglottis.
  • Croup is a parainfluenza virus.
  • Croup is a childhood disease.
  • All of the above

12.  Violent coughing is usually observed during which stage of whooping cough?

  • Primary stage
  • Pneumotic stage
  • Paroxysmal stage
  • Catarrhal stage
  • Convalescence stage

13.  Cyanosis is caused when ________

  • there is too little oxygen in the blood.
  • a patient has become septicemic.
  • dehydration occurs.
  • diptheria toxin enters the bloodstream.
  • coughing causes hemorrhaging.

14.  Penicillins have no effect on Mycoplasma pneumoniae because ________

  • mycoplasmas are viruses.
  • mycoplasmas possess beta lactamases.
  • mycoplasmas are too small.
  • mycoplasmas are eukaryotes.
  • mycoplasmas lack cell walls.

15.  Legionella pneumophila is usually transmitted by ________

  • direct contact.
  • fomites.
  • food.
  • blood.
  • aerosols.

16.  How many cases of tuberculosis are reported globally each year?

  • 10
  • 10,000
  • 100,000
  • 3 million
  • 10 million

17.  Mycobacteria are difficult to Gram stain, and are termed “acid-fast” due to their ________

  • ability to survive in acidic conditions.
  • resistance to drying.
  • thick, waxy cell walls.
  • resistance to sunlight.
  • lack of a peptidoglycan layer.

.

18.  What is the DPT immunization for?

  • Diptheria, parainfluenza, tetanus
  • Dermatomycoses, Pontiac fever, tuberculosis
  • Diptheria, pertussis, tetanus
  • Dermatomycoses, pertussis, tetanus
  • Diptheria, pneumonia, tetanus

19.  Antigenic shifts in influenza viruses are represented by dramatic changes in the viral antigens. It is likely they arise from rare events in which ________

  • two different influenza viruses infect a cell at the same time.
  • lysogenic conversion of two separate viruses occurs.
  • two viruses conjugate.
  • mutations accumulate.
  • All of the above

20.  Hantavirus pulmonary syndrome is ________

  • associated with inhalation of dried feces and urine of carrier rodents.
  • a syndrome that has only been reported in Africa and Latin America.
  • transmitted by the bite of a rodent carrying the virus.
  • attributed to rats but not mice.
  • preventable by vaccination.

Section: Matching

 

21.  Infects the pharynx and produces a systemic toxin

  • Corynebacterium diphtheriae
  • Streptococcus pneumoniae
  • Mycoplasma pneumoniae
  • Histoplasma capsulatum
  • Cryptococcus neoformans

22.  Causes the majority of cases of lobar pneumonia

  • Corynebacterium diphtheriae
  • Streptococcus pneumoniae
  • Mycoplasma pneumoniae
  • Histoplasma capsulatum
  • Cryptococcus neoformans

23.  Causes primary atypical pneumonia

  • Corynebacterium diphtheriae
  • Streptococcus pneumoniae
  • Mycoplasma pneumoniae
  • Histoplasma capsulatum
  • Cryptococcus neoformans

24.  Fungus present in chicken-impacted soil and bat guano

  • Corynebacterium diphtheriae
  • Streptococcus pneumoniae
  • Mycoplasma pneumoniae
  • Histoplasma capsulatum
  • Cryptococcus neoformans

25.  Yeast that causes a mild respiratory infection that can spread to meninges

  • Corynebacterium diphtheriae
  • Streptococcus pneumoniae
  • Mycoplasma pneumoniae
  • Histoplasma capsulatum
  • Cryptococcus neoformans

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