Respiratory System Lab Report
University of Phoenix Material Roderick Tabigne
Respiratory System Lab – Week Six
Introduction
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: …show more content…
Compare normal microflora of the upper respiratory tract with normal microflora of the lower respiratory tract.
Normal microflora of the upper respiratory tract:
The nares (nostrils) are always heavily colonized, predominantly with Staphylococcus epidermidis and corynebacteria withStaphylococcus aureus, this being the main carrier site of this important pathogen.
The healthy sinuses, in contrast are sterile.
The pharynx (throat) is normally colonized by streptococci and various Gram-negative cocci.
Sometimes pathogens such as Streptococcus pneumoniae, Streptococcus pyogenes, Haemophilus influenzae and Neisseria meningitidis colonize the pharynx.
Normal microflora of the lower respiratory tract
Free of microorganisms, mainly because of the efficient cleansing action of the ciliated epithelium which lines the tract.
Any bacteria reaching the lower respiratory tract are swept upward by the action of the mucociliary blanket that lines the bronchi, to be removed subsequently by coughing, sneezing, swallowing, etc.
PART two: basic structures
Visit Chapter 21 of Microbiology: Principles and Explorations in WileyPlus to view an in-depth presentation of a healthy respiratory system by completing the following …show more content…
It is a chronic, or long-term, disease that inflames and narrows the airways of the lungs. It causes repeated episodes of wheezing, breathlessness, chest tightness, and night time or early morning coughing. The microbe that causes the illness is chronic Mycoplasma pneumonia and Chlamydia pneumonia infections, and are associated with the onset and exacerbation of asthma.
An asthma attack affects the respiratory system and causes airway inflammation, bronchial restriction and irregular airway obstruction. Airway inflammation is the body's response to an irritant and is characterized by swelling, breathing passageway restriction and mucus secretion. Bronchial restriction occurs when the muscles in your airways constrict and tighten around your primary bronchial tubes (the breathing tubes in your lungs). Mucus or fluid that is secreted by the reaction can obstruct your trachea and make it increasingly difficult to breathe effectively.
Asthma affects people of all ages, but it most often starts during childhood. Young children who often wheeze and have respiratory infections and are at highest risk of developing asthma that continues beyond 6 years of age. Among children, more boys have asthma than girls. But among adults, more women have the disease than men. Most, but not all, people who have asthma have
Respiratory System Lab – Week Six
Introduction
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: …show more content…
Compare normal microflora of the upper respiratory tract with normal microflora of the lower respiratory tract.
Normal microflora of the upper respiratory tract:
The nares (nostrils) are always heavily colonized, predominantly with Staphylococcus epidermidis and corynebacteria withStaphylococcus aureus, this being the main carrier site of this important pathogen.
The healthy sinuses, in contrast are sterile.
The pharynx (throat) is normally colonized by streptococci and various Gram-negative cocci.
Sometimes pathogens such as Streptococcus pneumoniae, Streptococcus pyogenes, Haemophilus influenzae and Neisseria meningitidis colonize the pharynx.
Normal microflora of the lower respiratory tract
Free of microorganisms, mainly because of the efficient cleansing action of the ciliated epithelium which lines the tract.
Any bacteria reaching the lower respiratory tract are swept upward by the action of the mucociliary blanket that lines the bronchi, to be removed subsequently by coughing, sneezing, swallowing, etc.
PART two: basic structures
Visit Chapter 21 of Microbiology: Principles and Explorations in WileyPlus to view an in-depth presentation of a healthy respiratory system by completing the following …show more content…
It is a chronic, or long-term, disease that inflames and narrows the airways of the lungs. It causes repeated episodes of wheezing, breathlessness, chest tightness, and night time or early morning coughing. The microbe that causes the illness is chronic Mycoplasma pneumonia and Chlamydia pneumonia infections, and are associated with the onset and exacerbation of asthma.
An asthma attack affects the respiratory system and causes airway inflammation, bronchial restriction and irregular airway obstruction. Airway inflammation is the body's response to an irritant and is characterized by swelling, breathing passageway restriction and mucus secretion. Bronchial restriction occurs when the muscles in your airways constrict and tighten around your primary bronchial tubes (the breathing tubes in your lungs). Mucus or fluid that is secreted by the reaction can obstruct your trachea and make it increasingly difficult to breathe effectively.
Asthma affects people of all ages, but it most often starts during childhood. Young children who often wheeze and have respiratory infections and are at highest risk of developing asthma that continues beyond 6 years of age. Among children, more boys have asthma than girls. But among adults, more women have the disease than men. Most, but not all, people who have asthma have