Respitory System Flashcards
What are the parts of the upper respiratory system?
Nasal cavity, pharynx, larynx
The upper respiratory system is responsible for filtering, warming, and moistening the air we breathe.
What are the parts of the lower respiratory system?
Trachea, bronchi, bronchioles, alveoli
The lower respiratory system is involved in the gas exchange process.
What is the function of the upper respiratory system?
Filter, warm, and moisten air
This prepares the air for the lungs and protects the lower respiratory tract.
What is the function of the lower respiratory system?
Gas exchange
This occurs primarily in the alveoli.
What is the mechanism for expiration?
Diaphragm relaxes, chest cavity decreases in volume
This increases pressure in the lungs, forcing air out.
What is the mechanism for inspiration?
Diaphragm contracts, chest cavity increases in volume
This decreases pressure in the lungs, allowing air to flow in.
How is breathing controlled by the nervous system?
Medulla oblongata and pons regulate the rhythm of breathing
These areas respond to CO2 levels and blood pH.
How are chemicals involved in controlling breathing?
Chemoreceptors detect CO2 and O2 levels
They signal the brain to adjust breathing rate accordingly.
Where does gas exchange occur?
In the alveoli of the lungs
Oxygen enters the blood, and carbon dioxide is removed.
What are some common respiratory infections?
Bronchitis, pneumonia, influenza
These can affect the upper or lower respiratory systems.
What are some common respiratory disorders?
Asthma, COPD, emphysema
These conditions can cause difficulty in breathing.
What is the impact of tobacco on health?
Causes respiratory diseases, lung cancer, and reduces lung function
Tobacco smoke contains harmful chemicals that damage the respiratory system.
True or False: Smoking bans can improve public health.
True
Bans reduce exposure to secondhand smoke and encourage cessation.
What is one opinion about legislation on smoking?
Legislation should prioritize public health and reduce smoking rates
Opinions may vary based on personal beliefs and values.
