20 Questions
Which part of the respiratory system is responsible for gas exchange?
Alveolar sacs
What is the main function of the epiglottis in the respiratory system?
Preventing food from entering the trachea
Where does the intake of O2 for delivery to body cells occur in the respiratory system?
Alveolar ducts
What is the function of the conducting zone in the respiratory system?
Inhalable dust filtration
Which part of the respiratory system contains receptors for the sense of smell?
Nose
What is the function of goblet cells in the respiratory system?
Producing a sticky liquid called mucous to trap unwanted particles
What is the epithelial lining of the terminal bronchioles in the respiratory system?
Simple cuboidal epithelium
What is the role of cilia in the lower respiratory tract?
Sweeping mucous towards the throat to be swallowed
What is the primary function of alveoli in the respiratory system?
To facilitate gas exchange
What is the purpose of cartilage rings in the trachea of the respiratory system?
To provide support and prevent collapse of the trachea during pressure changes
What is the primary characteristic of asthma?
Spontaneous narrowing of the airways
Which factor is NOT listed as influencing the development of asthma?
High-altitude living
What are the typical symptoms of asthma?
Wheezing and breathlessness
What are the two main causes of airway narrowing in asthma?
Smooth muscle contraction and tissue fibrosis
Which cells are involved in mediating the pathophysiology of asthma?
Eosinophils and T-cells
What is the role of mast cells in the allergic response?
Releasing inflammatory mediators in response to allergen binding to IgE
What is the function of T-lymphocytes and B-lymphocytes in the allergic response?
Producing IgE antibodies against the allergen
What is the effect of histamine acting at H1 receptors?
Causing bronchoconstriction
What is the role of eosinophils in asthma?
Contributing to tissue remodelling and increased mucous production
What happens when an allergen binds to IgE on the surface of mast cells?
Release of inflammatory mediators by mast cells
Test your knowledge of the anatomy and function of the respiratory system, including the organs, conducting zones, and respiratory zones. Explore the functions of the respiratory system in gas exchange and regulation of blood.
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