Oxygenation and Respiratory System Lecture Flashcards
(411 cards)
What is the primary function of the respiratory system?
Gas exchange
What is the first step in the gas exchange process?
Oxygen enters nose/mouth
What is the pathway oxygen follows after entering the body?
Nose/mouth → airways → trachea → bronchi → bronchioles → alveoli/air sacs
What happens to oxygen after it reaches the alveoli?
O2 is carried to organs & tissues
What is CO2 in the context of the respiratory system?
Waste gas in tissues
How does CO2 move during the gas exchange process?
Moves from blood into lungs to be exhaled
What condition can restrict the ability of the body to get rid of waste products?
COPD
Fill in the blank: Oxygen moves through the _______ to reach the alveoli.
airways
True or False: The trachea is part of the pathway oxygen takes to the alveoli.
True
What are the air sacs in the lungs called?
Alveoli
What is the role of bronchi in the respiratory system?
Conduct air to bronchioles
What is the role of the respiratory system in removing carbon dioxide?
Exhalation
What is obstructive airway disease?
A reduction in airflow (retention of air inside the lungs) known as air trapping or hyperinflation-> increases CO2 levels
narrowed or obstructed airways make it difficult to fully exhale, leading to the trapping of air within the lungs.
Asthma and COPD (two types): chronic bronchitis and emphysema
What are examples of obstructive airway disease?
- Asthma
- COPD
- Chronic bronchitis
- Emphysema
What is restrictive airway disease?
A reduction in lung volume
What are examples of restrictive airway disease?
- Pneumonia
- Silicosis
- Lobectomy/Lung CA
- Tuberculosis
- Adult Respiratory Distress Syndrome (ARDS)
What is the primary difference between obstructive and restrictive airway disease?
Pathophysiology
What causes shortness of breath in obstructive airway disease?
Inability to exhale air (increase in CO2)
What causes difficulty in breathing in restrictive airway disease?
Difficulty breathing IN air (Receiving oxygen)
Obstructive Vs Restrictive Airway Disease (picture)
What is obstructive airway disease characterized by?
Air trapping, narrowing of airways, increased airway secretions, chronic airflow limitation, inability to exhale completely
What does air trapping refer to in obstructive airway disease?
Retention of air, particularly CO2, in alveoli
What are the main conditions associated with obstructive airway disease?
- Asthma
- COPD
- Chronic bronchitis
- Emphysema
True or False: Chronic airflow limitation is primarily during inhalation.
False