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Questions and Answers
What is the primary function of alveoli in the lungs?
What is the primary function of alveoli in the lungs?
- To transport oxygen throughout the body
- To produce mucus for the respiratory tract
- To filter dust and particles from the air
- To facilitate the exchange of gases (correct)
Which of the following respiratory diseases is caused by bacteria?
Which of the following respiratory diseases is caused by bacteria?
- Bronchitis
- Tuberculosis (correct)
- Influenza
- Pharyngitis
What does vital capacity measure in the respiratory system?
What does vital capacity measure in the respiratory system?
- The total volume of air in the lungs
- The amount of air exchanged during rest
- The amount of air exhaled after maximum inhalation (correct)
- The speed at which air is inhaled
How does smoking affect lung health?
How does smoking affect lung health?
What is the role of hemoglobin in the gas exchange process?
What is the role of hemoglobin in the gas exchange process?
Flashcards
Alveoli
Alveoli
Tiny air sacs in the lungs where gas exchange takes place.
Respiration
Respiration
The process of breathing, involving taking in oxygen and releasing carbon dioxide.
Vital Capacity
Vital Capacity
The maximum amount of air you can exhale after a deep breath.
Bronchitis
Bronchitis
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Pneumonia
Pneumonia
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Study Notes
Respiratory System
- Respiration is the process of exchanging oxygen and carbon dioxide.
- The respiratory system includes the nose, pharynx, trachea, bronchi, and lungs.
- The lungs are composed of alveoli, tiny air sacs surrounded by capillaries.
- Oxygen from inhaled air binds to hemoglobin in red blood cells and is transported to body tissues. Carbon dioxide from tissues is transported to the lungs for exhalation.
- Vital capacity of the lungs is the maximum volume of air a person can exhale after a maximum inhalation.
Respiratory Diseases
- Acute respiratory infections are caused by bacteria or viruses, or allergies.
- Chronic respiratory illnesses are caused by exposure to dust, smoke or irritants.
- Smoking damages the respiratory system, reduces lung capacity, and can cause lung cancer.
- Sore throat (angina) is an inflammation of the pharynx and tonsils, often caused by bacteria or viruses.
- Flu is a viral infection transmitted through droplets.
- Bronchitis is an inflammation of the bronchi, often caused by viruses.
- Pneumonia is an inflammation of the lungs, caused by either bacteria or viruses.
- Tuberculosis is a bacterial infection caused by Mycobacterium tuberculosis. Vaccination against TB is recommended.
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